We are getting deeper

Again, you have two different paths:

TDI Extended Range gives you 55 m maximum depth using air/ nitrox as the bottom gas. I do not support deep air diving, therefore I don’t teach this course. You can take the Trimix course instead. The skills are the same but you will use trimix as backgas to reduce narcosis

In the TDI Trimix course you will learn to handle multiple stages, planning normoxic trimix dives up to 60 m minimum 18% oxygen. With this certification, you can visit some cool sites as HMS Stubborn or Le Polynesien. Equivalent narcotic depth, gas reserve,  equipment selection, backup planning are just some of the topics we will cover.

At this level you need to be able to hold position for extended time even in blue water, have strong skills. This is not the course to learn how to dive. This course will make you ready for the Advanced Trimix course, or you can continue with the Trimix 75m extension.

One tip:

It is always wise to plan a few days extra on your holiday when you come for a Trimix course. For example, just in case we have to postpone a dive because of bad weather

What equipment will you need?

1. Bottom mix cylinder(s):
a. Cylinder volume appropriate to complete all planned decompression on bottom mix. Either twinset or sidemount can be used
2. Decompression mix cylinders (2 will be used)
3. Suit inflation cylinder, required for dry suit divers only.
4. Regulators:
a. Primary and primary redundant required on all bottom mix cylinder(s), one with long hose.
b. Submersible pressure gauges are required on all primary/bottom mix cylinders.
5. Buoyancy compensator device(s) (BCD) adequate for equipment configuration
6. Redundant depth and timing devices.
7. One technical dive computer (capable to handle trimix) and one gauge/timer (or two tec computer).
8. Redundant light system if required by site.
9. Ascent reel with lift bag/surface marker buoy:
a. Adequate for maximum planned depth, minimum 60m
b. Adequate lift and size for the dive environment.
10. Exposure suit adequate for the open water environment.
11. Line cutting device.
12. Underwater slate or wetnotes
13. Access Helium analyzer.