The course
With hypoxic Trimix, the gas you breathe on the bottom is no longer the one you breathe at the surface. The SNSI Explorer Diver 2 course teaches you to plan and manage a dive with several mixes: travel gas on the way down, bottom mix down to 240 ft / 72 m, EAN50 and oxygen for decompression. A level where every switch and every detail of the plan counts, and where discipline becomes second nature.
Course structure
What's included.
- Minimum Age
- 18 years
- Maximum Depth
- 240 ft / 72 m
- Bottom Mix
- Hypoxic Trimix (O₂ ≥ 16%)
- Travel & Deco Gases
- Trimix 20/30 or 21/35, EAN50 and/or oxygen
- Configuration
- Backmount or Sidemount
- Required Experience
- At least 20 decompression dives deeper than 150 ft / 45 m, 4 of them in the last 2 months
Prerequisites
One of these combinations
- 1Explorer Diver 1 or equivalent
- 2Sidemount Explorer Diver 1 and Essential TEK Diver (or equivalent)
Duration
24–48
hours
Open Water Dives
4
minimum
Materials and apps
Your course, in your pocket.
English Metric
View the Explorer Diver 2 Manual
Browse it online or download the PDF.
Continue the journey
Your next adventure.
Ready to start?
Find an SNSI dive center and book your Explorer Diver 2 course.

