EN
Helitrox CCR Deco Procedures Diver
This is the second entry-level certification course for divers who wish to use a closed-circuit rebreather (CCR) for mixed-gas dives using Helitrox as a diluent. The objective of this course is to introduce divers to the benefits, hazards, and proper procedures for diving with a CCR and to develop basic CCR diving skills, up to a maximum depth of 45 meters / 150 feet, using an air/nitrox/helium diluent for formal decompression diving. Students are authorized to use a blend of diluent and backfill with a helium content not exceeding 35% (+/- 5%) and an oxygen content not less than 21%. Students are authorized to use up to 100% oxygen for decompression.
- Duration: 5 days
- Depth: 45 m
- Price per day per person
BOOKING
Reservation confirmations require a 50% deposit. We accept bank transfer, credit card or PayPal. Full payment must be settled in Mexican pesos at the daily USD exchange rate or in cash prior to the start of your dive activity. Deposits for reservations are non-refundable, in certain circumstances, such as unforeseen medical issues or emergencies, the course or dive activities may be rescheduled. Any cancellation less than 24 hours prior to your first day of diving will be charged in full.
SCHEDULE
You can customize your course or dive trip according to your preferences and schedule throughout the year, we are open for training and diving seven days a week. The schedule can be adapted and subject to change due to weather conditions.
Requisitos
- Minimum age: 18 years.
- Provide proof of 50 logged dives. If you are completing a cross-over course, provide proof of 10 logged CCR dives within the last 12 months.
- Minimum certification level: TDI Advanced Nitrox Diver, Deco Procedures Diver, or Helitrox Diver, or equivalent from agencies recognized by TDI.
- If the rebreather is a TDI-approved sidemount rebreather, the student must hold the TDI Sidemount Diver certification or equivalent, provide proof of 10 logged sidemount dives, and meet any additional requirements the sidemount rebreather manufacturer may have.
What will you learn?
Theory
- History and evolution of rebreathers.
- Comparison of open-circuit, closed-circuit, and semi-closed-circuit rebreather systems.
- Practical mechanics of the system.
- Gas physiology.
- Proper packing of the scrubber, according to the manufacturer’s recommendations.
- Design and maintenance of electronic or manual systems.
- Dive tables.
- Dive computers.
- Dive planning.
- Emergency procedures.
- Considerations regarding helium.
Skills
- Assemble the unit according to the manufacturer’s specifications using the manufacturer’s manual/checklist.
- Pre-dive checks.
- Verify the contents of the diluent and oxygen (O₂) cylinders using an O₂ analyzer when appropriate.
- Demonstrate proper pre-dive planning procedures.
- Emergency procedures.
- Use of the BCD/suit and effective management of the breathing loop volume for buoyancy control.
- Stop at 3–6 meters / 10–20 feet during descent to check for a leak bubble.
- Monitoring of electronic systems for PO₂ levels (SETPOINT) and switching of setpoints.
- Manual control of the setpoint if an electronically controlled CCR is not used.
- Use and adjustment of Heads-Up Displays and computers.
- Removal and replacement of the mask.
- Use of the lift bag / delayed surface marker buoy and reel (when relevant and applicable).
- Proper execution of the dive within all predetermined dive limits.
- Demonstration of safety stops at predetermined depths.
- Constant monitoring of the loop volume.
- Cell validation checks with proper use of diluent and oxygen.
- Cleaning of the unit after the dive to prevent contamination and the spread of disease.
Included in the course:
- Private instructor.
- In-person sessions.
- Transportation to the cenotes or boat ride from the shop.
- Single, CCR, side-mount, and double tanks.
- Weight.
- EAN 32 fills.
- Certification card.
- Water and snacks.
Not included:
- Entrance fees to cenotes (between US$10 and US$15 per day).
- Diving equipment
- Manual or e-learning
- O2, decompression gases, and trimix (when applicable).
- Lunch.
- Diving insurance.
Additional Services
- Equipment Rental and/or Sale
- Basic Diving Equipment
- Rental: $5 per item per day (Wetsuit, Mask, Boots, Fins).
- Sample Gas Rates
- EAN 50, 80 CUF. $21 per tank
- O2 100% 13 CUF. US$ 25 per tank
- Trimix 21/35 80 CUF. US$ 85 per tank
- Cave diving equipment:
- Sidemount harness (Rental US$ 20 per day).
- Sidemount Regulator Set (Rental US$ 25 per day).
- Twinset Wing / Backplate (Rental US$ 20 per day).
- Twinset Regulator Set (Rental US$ 25 per day).
- Stage Regulator and Rig (US$ 15 per day).
- Primary Cave Light (US$ 20 per day).
- Backup Light (US$ 5 per day).
- Filter
- EAC Cartridge US$ 85 (approx. 4–5 hours of scrubbing)
- Sofnolime 8–12 US$ 12 per lb.
Important Information:
Plan carfully your trip to minimize your enviromental impact, please avoid sunscreen / mosquito repellent or other skin products for all water activities. Whenever possible, choose rechargable batteries and aviod to carring things like disposable razors, plastic bags, plastic water bottels, etc. We are in a very fragil and pristine enviroment and is our responsability to keep it that way.
CCR diving is a highly demanding activity with a specific mindset and requires very good trim, buoyancy, propulsion, and awareness. We will do our best to improve your skills and knowledge, also we will set the best training plan according to the skills and experience of each diver to help them to succeed in the course but consider sometimes we need extra days to achieve the goals with a classroom or water sessions and we apply extra rate if is necessary. We strongly recommend to the students plan at least two extra days just in case.
Notes:
Please bring change of clothes & towels for cenote training days.
All courses are available in English or Spanish.
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