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GUIDED
TECH DIVES

Experience the thrill of guided technical diving with Manta Tech amidst the breathtaking Gili Islands. Dive deep into azure waters and encounter majestic reefs and marine life in a world-class underwater adventure.

Rebreather diver filming a school of fish during a guided technical dive at Manta Dive Tech Gili Trawangan, Indonesia

Gili Trawangan, Indonesia, offers some of the most exciting technical diving sites in the region, with deep walls, stunning topography, and encounters with sharks, rays, and large pelagics. Recent discoveries like Linda’s Reef, home to a healthy population of Grey Reef Sharks, highlight the incredible potential for exploration dives. From the deeper sections of recreational sites in the 20-40m range to tech-only walls plunging to 100m+, these waters offer perfect conditions for twinset, sidemount, and CCR divers. We offer guided technical dives for all levels of certified open circuit and rebreather divers, with optional DPV use for those qualified.  

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Our dive center provides manifolded twins, dedicated sidemount tanks, 3L steel and aluminum CCR cylinders (inline and standard), and full rental gear packages as well as the SF2 backmount rebreather. A check dive to 45m is required for deeper dives, and Tech Update dives are available to refresh your skills if you’ve been out of the water. Whether you’re seeking deep marine life encounters, honing your technical skills, or capturing the underwater world through photography on your rebreather. 

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At Manta Tech in Indonesia your next deep diving adventure is just around the corner! 

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DIVE SITES

WHERE DO YOU DIVE?

For our technical dives we have a wide range of offerings all around the Gili Islands with depths ranging up to 200m+ we can accommodate any depth desired.

Technical sidemount diver at the wreck at Shark Point at Manta Dive Tech Gili Trawangan, Indonesia

SHARK POINT

WRECK: 24-28M DEPTH

DEEP RIDGES: 30-55M

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MARINE LIFE:

WHITE TIP REEF SHARKS

BLACK TIP REEF SHARKS

TREVALLY'S

BUMPHEAD PARROTFISH

PRICING

WHAT DOES IT COST?

For our technical dives we have a wide range of offerings all around the Gili Islands with depths ranging up to 200m+ we can accommodate any depth desired.

0-45m

1.000.000 IDR

45-60m

1.300.000 idr

60-80m

1.800.000 idr

80-100m

2.500.000 IDR

100m+

ON REQUEST

REC CCR

750.000 IDR

PHOTOS

ON REQUEST

  • Examples of skills
    Analysing oxygen enriched breathing mixed Labelling gas contents Gas contents calculations (Maximum Operating Depth, Best Mix, Partial Pressure of Oxygen) Tracking oxygen exposures Calculating no-decompression limits
  • Certification requirements
    Demonstrate understanding of EAD calculations Perform oxygen analysis for nitrox mixtures Satisfactorily complete the TDI Nitrox course and written examination
  • What you can expect to learn
    The benefits, hazards, and proper procedures for using nitrox mixes from 22 through 40 percent oxygen content Equipment considerations, cylinder labeling, analyzing nitrox mixtures, and gas blending procedures
  • What's in it for you
    Ability to dive utilizing EAN-22 to EAN-40 without direct supervision Ability to enroll in TDI Advanced Nitrox, TDI Decompression Procedures, TDI Semi-closed Rebreather courses
  • What's in it for you
    Ability to dive using EAN 21 through 100 percent oxygen provided. Ability to enroll in TDI Decompression Procedures, TDI Semi-closed Rebreather courses, TDI Closed Circuit rebreather courses
  • What you can expect to learn
    Advanced Nitrox picks up where TDI Nitrox leaves off and offers a more in-depth look at diving with nitrox including Physics and physiology relating to diving with gas mixes containing more than 40% oxygen Gas planning, dive tables, dive computers, oxygen limitations, nitrogen limitations Equipment considerations, cylinder labeling, analyzing Nitrox mixtures, gas blending procedures, and oxygen service ratings for using gases with more than 40% oxygen
  • Certification requirements
    Satisfactorily complete the TDI Advanced Nitrox course and written examination Complete all open water requirements safely and efficiently Demonstrate mature, sound judgment concerning dive planning and executio
  • Examples of skills
    Demonstrate buoyancy control; ability to hover at fixed position in water column without moving hands or feet Show good awareness of buddy and other team members through communication, proximity, and team oriented dive practices Demonstrate the ability to manage free flow from primary regulator in controlled fashion, shut down cycle, and switch to back up regulator Conduct appropriate safety stop while maintaining neutral buoyancy Demonstrate the ability to share air with buddy as both recipient and donor in a controlled manner while maintaining position in the water column Demonstrate correct body position; appropriate trim, such as horizontal/streamlined when moving forward Demonstrate proper stress analysis with self and dive buddy
  • What's in it for you
    Ability to conduct decompression diving activities without direct supervision provided the diving activities approximate those of training, environment and activities. Ability to enroll in TDI Extended Range, TDI Advanced Wreck, TDI Trimix courses
  • Certification requirements
    Satisfactorily complete the TDI Decompression Procedures course written examination Complete all open water requirements safely and efficiently Demonstrate mature, sound judgment concerning dive planning and execution
  • Examples of skills
    Decompression dive planning including: Decompression gas choices Tables vs. personal dive computers Emergency and contingency planning (equipment failure, omitted decompression, etc.) Decompression diving procedures Equipment selection Pre-dive checks and drills Stress analysis and mitigation Following a decompression schedule Gas switching Team awareness and communication SMB/lift bag deployment Proper trim, buoyancy and fining techniques Emergency procedures (equipment failures, catastrophic gas loss, omitted decompression, navigational errors, etc.) Equipment considerations, cylinder labeling, analyzing nitrox mixtures, and gas blending procedures
  • What you can expect to learn
    Physics and physiology relating to diving to deeper depths including narcosis and decompression theory Dive planning beyond the no-decompression limits with mandatory decompression stops Gas planning, dive tables, dive computers, oxygen limitations, nitrogen limitations Equipment considerations
  • Examples of skills
    Propulsion techniques Gas sharing Gas management Dropping and retrieving cylinders
  • What's in it for you
    Upon successful completion of the course, graduates may engage in side mount diving to their certification level
  • Certification requirements
    Satisfactorily complete the TDI Sidemount course and written examination Complete all open water requirements safely and efficiently Demonstrate mature, sound judgement concerning dive planning and execution
  • What you can expect to learn
    Gas Management using independent cylinders Equipment considerations Problem solving in side mount configuration S/drills specific to side mount diving
  • What's in it for you
    Upon successful completion of the course, graduates may engage in back mount diving with manifolded twinsets to their certification level
  • Examples of skills
    Propulsion techniques Gas sharing Gas management Managing gas hemorrhages
  • What you can expect to learn
    Gas Management using manifolded cylinders Equipment considerations Problem solving in back mount configuration S/drills specific to back mount diving
  • Certification requirements
    Complete all open water requirements safely and efficiently Demonstrate mature, sound judgement concerning dive planning and execution
  • What you can expect to learn
    Equipment considerations Diving with 2 stages Planning dives with multilevel gas, travel gas, extended bottom gas Procedures for dives with up to 3 gases Advanced technical rescue skills Advanced self-rescue skills Emergency planning Physiology
  • Examples of skills
    Stage handling Extended gas planning Risk & stress management and analysis Fundamental technical diving skills
  • Certification requirements
    Satisfactorily complete the TDI Extended Range course written examination Complete all open water requirements safely and efficiently Demonstrate mature, sound judgment concerning dive planning and execution
  • What's in it for you
    Ability to conduct dives with 2 stages and three different gases to a maximum depth of 55m Ability to plan and execute longer more complex dives allowing you to explore new deeper sites
  • What you can expect to learn
    Safe handling and navigating underwater with a DPV Emergency procedures while using a DPV (out of gas, lost mask...etc) DPV specific emergency skills (flooded DPV, broken DPV...etc)
  • What's in it for you
    The ability to cover great distances and large amounts of reef on single dives. The amazing feeling of flying that the DPV provides
  • Certification requirements
    Satisfactorily complete the TDI DPV course Complete all open water requirements safely and efficiently Demonstrate mature, sound judgement concerning dive planning and execution
  • What you can expect to learn
    Comparison of open circuit (OC), closed circuit, and semi-closed circuit, rebreather (SCR) systems noting the pros and cons of each Practical mechanics of the system Gas physiology Proper scrubber packing: in accordance with manufacturers recommendation Electronic or manual systems design and maintenance CCR emergency procedures Checklists for pre and post dive
  • What's in it for you
    Upon successful completion of this course, graduates may engage in diving activities utilizing the CCR they were trained to dive without direct supervision of the TDI Instructor so long as the following limits are adhered to: The diving activities approximate those of training The areas of activities approximate those of training Environmental conditions approximate those of training To a maximum depth of 30 metres/100 feet No decompression dives are permitted
  • Certification requirements
    Satisfactorily complete the TDI CCR Air Diluent examination with a passing score of 80%, followed by 100% remediation by the Instructor Complete all open water requirements efficiently Demonstrate mature and sound judgment concerning dive planning and execution Course must be completed within 6 weeks from the starting date Complete a refresher course following a period of inactivity greater than 6 months following the course
  • What's in it for you
    Upon successful completion of this course, graduates may engage in decompression diving activities utilizing the CCR they were trained to dive with, without direct supervision of the TDI Instructor so long as the following limits are adhered to: The diving activities approximate those of training The areas of activities approximate those of training Environmental conditions approximate those of training To a maximum depth of 45 metres/150 feet Utilizing air diluent
  • What you can expect to learn
    History and evolution of rebreathers Comparison of Open Circuit (OC), closed circuit, and Semi-closed Circuit Rebreather (SCR) systems noting the pros and cons of each Practical mechanics of the system Gas physiology Proper scrubber packing: in accordance with manufacturers recommendation Electronic or manual systems design and maintenance Dive planning Emergency procedures Dive checklists Predive checks
  • Certification requirements
    Satisfactorily complete the TDI CCR Air Diluent Decompression examination with a passing score of 80%, followed by 100% remediation by the Instructor Complete all open water requirements efficiently Demonstrate mature and sound judgment concerning dive planning and execution Course must be completed within 6 weeks from the starting date Complete a refresher course following a period of inactivity greater than 6 months following the course
  • What's in it for you
    Upon successful completion of this course, graduates may engage in decompression diving activities utilizing the CCR they were trained to dive with, without direct supervision of the TDI Instructor so long as the following limits are adhered to: The diving activities approximate those of training The areas of activities approximate those of training Environmental conditions approximate those of training To a maximum depth of 45 metres/150 feet Utilizing helitrox
  • Certification requirements
    Satisfactorily complete the TDI CCR Air Diluent Decompression examination with a passing score of 80%, followed by 100% remediation by the Instructor Complete all open water requirements efficiently Demonstrate mature and sound judgment concerning dive planning and execution Course must be completed within 6 weeks from the starting date Complete a refresher course following a period of inactivity greater than 6 months following the course
  • What you can expect to learn
    History and evolution of rebreathers Comparison of Open Circuit (OC), closed circuit, and Semi-closed Circuit Rebreather (SCR) systems noting the pros and cons of each Practical mechanics of the system Gas physiology Proper scrubber packing: in accordance with manufacturers recommendation Electronic or manual systems design and maintenance Dive planning Emergency procedures Dive checklists Predive checks Helium considerations
  • What's in it for you
    Upon successful completion of this course, graduates may engage in technical diving activities utilizing the unit specific CCR to a maximum of 60 metres / 200 feet, utilizing a mixed gas diluent containing 16 percent or greater oxygen provided: The diving activities approximate those of training The areas of activities approximate those of training Environmental conditions approximate those of training Ability to enroll in TDI Advanced Mixed Gas CCR Diver course
  • Certification requirements
    Complete to the instructors satisfaction all confined and open water skill development sessions Demonstrate mature, sound judgment concerning dive planning and execution Course must be completed within 6 weeks from the starting date Complete a refresher course following a period of inactivity greater than 6 months following the course
  • What you can expect to learn
    The TDI Diving Rebreathers Student Manual is required for use as a review/recap document. The instructor may use any additional text or materials they feel will represent the topic in an educational manner. The following topics must be covered during the course: Gas physiology, Oxygen toxicity, Hypoxia, Nitrogen and Helium absorbtion, HPNS, CO2 toxicity, Gas consumption, mixing and Formula work Creation of custom dive tables appropriate to dive depths Creation of lower percentage of oxygen (PO2) diluent to support loop flushing and bailout at depth Dive planning, Operational planning Equipment maintenance, Fuel cell management, Loop configurations and additional fitted equipment and modifications
  • TDI (Tech) DPV Instructor
    Minimum age 18 Minimum certification as an SDI Open Water Scuba Diver Instructor or the equivalent Provide proof of a minimum of 25 logged DPV dives ** Minimum certification as TDI Advanced Nitrox and Decompression procedures diver or equivalent for the Technical DPV Instructor rating
  • TDI Sidemount Instructor
    Minimum age 18 Minimum certification as an SDI Open Water Scuba Diver Instructor or the equivalent Provide proof of a minimum of 25 logged sidemount dives
  • TDI Intro To Tech Instructor
    Minimum age 18 Minimum certification as an SDI Open Water Scuba Diver Instructor or the equivalent Certified as basic nitrox diver, may be combined with instructor program Provide proof of a minimum of 10 logged nitrox dives
  • TDI Nitrox Instructor
    Minimum age 18 Minimum certification as an SDI Open Water Scuba Diver Instructor or the equivalent Certified as basic nitrox diver, may be combined with instructor program Provide proof of a minimum of 10 logged nitrox dives
  • TDI Nitrox Blender Instructor
    Minimum age 21 Minimum certification of TDI Nitrox blender or equivalent
  • TDI Decompression Procedures Instructor
    Minimum age 18 Minimum certification of TDI Advanced Nitrox Instructor or equivalent (unless Advanced Nitrox Instructor course is taught in conjunction with Decompression Procedures Instructor) Minimum certification of TDI Decompression Procedures diver or equivalent Provide proof of 150 logged dives Have certified 10 students in SDI Deep Diver or TDI Advanced Nitrox diver or equivalent
  • TDI Advanced Nitrox Instructor
    Minimum age 18 Minimum certification of TDI Advanced Nitrox diver or equivalent Provide proof of 100 logged dives, 25 must be nitrox dives Must have certified 10 students in entry-level nitrox
  • TDI (Advanced) Trimix Gas Blender
    Minimum age 21 Minimum certification of TDI Advanced Gas Blender or equivalent Minimum certification of TDI Nitrox blender instructor or equivalent
  • what are the certification requirements?
    Satisfactorily complete the appropriate written exam with a minimum score of 80 percent, without reference and be able to adequately explain each answer to a prospective student Demonstrate mature, sound judgment concerning training, dive planning and execution Complete all in-water requirements safely and efficiently Demonstrate proficiency in teaching the specific diver program Present the required number of graded academic presentations
  • what are the required skills?
    The instructor candidate will be evaluated on their knowledge and ability to teach each required subjects and diving skills for the specific course. Specific requirements vary based on the level of instructor course.
  • How far are your dive sites?
    All our dive sites are located within 30 minutes by boat from the dive shop.
  • What equipment is available for rent?
    SIDEMOUNT ​• REGULATORS: ScubaForce Black Devil Sidemount • BCD: ScubaForce Blade • COMPUTER: Shearwater Petrel 2 / Shearwater Perdix 1 • ScubaForce BlackDevil Deco regulator • Apeks XTX50 Travelgas regulator ​ TWINSET ​• REGULATORS: ScubaForce Black Devil Twinset • BCD: ScubaForce Black Devil 40lbs/ 50lbs • BACKPLATE: Aluminium/ Steel continuous webbing • COMPUTER: Shearwater Petrel 2 / Shearwater Perdix 1 • ScubaForce BlackDevil Deco regulator • Apeks XTX50 Travelgas regulator ​ CLOSED CIRCUIT (CCR) • SF2 eCCR dual Petrel 2 handset • Steel or Aluminium tanks • Steel or Aluminium backplate • Trimix, Nitrox & Air bailouts (s40 or s80) • ScubaForce BlackDevil Deco regulator • Apeks XTX50 Travelgas regulator DPV • Suex XJ37 • DiveXtras Blacktip Tech OTHER • Tank rigging (Sidemount & Sling) • SMB's & Spools/ Reels • Cutting devices
  • What guidelines are in place for guided tech dives?
    GENERAL ​• All guided technical dives require proof of certification up to that level and insurance. • All gas mixes MUST be analysed, correctly labeled for MOD and content, and signed and dated by the user. Fill station log must be completed. • For all trimix dives (OC & CCR) the maximum END is: 40m/100ft. • All dive plans must be approved by your designated guide. • We welcome dive planning with software & algorithm of your choice, so long as decompression and gas plans are conservative. We typically plan dives using Buhlmann ZHL-16C on Multideco dive planner. ​ OPEN CIRCUIT (OC) • All OC guided tech dives must be conducted with a redundant bottom gas system i.e. manifolded twinsets or sidemount. • Maximum OC PO2: 1.4 for bottom gasses, 1.5 for travel gasses and 1.6 for decompression gasses • Minimum of one technical dive computer and one backup depth & timing device must be carried on the dive. ​ CLOSED CIRCUIT (CCR) • All guided CCR dives require certification for specific unit to the desired depth. • Maximum CCR setpoint: 1.3. • Maximum Dil PO2: 1.2. • Manufacturer guidelines must be followed regarding scrubber duration.
  • What is the current price of Helium/ Oxygen/ Sofnolime?
    • O2 @ 300 IDR per litre (charged on consumption) • HE @ 3500 IDR per litre (charged on consumption) • Sofnolime 797 grade. 1.0mm to 2.5mm diving grade @ 210,000 IDR per kilo.

BOOK NOW

SCHEDULE YOUR DIVES

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