Rebreather

S2

A closed-circuit rebreather. Uncommon in the directory, and details of its manufacturer are not confirmed here — worth asking the instructor directly about the unit and their qualifications on it.

No instructors in the directory are currently listed on the S2.

We're still building out the directory country by country, so this list isn't every S2 instructor or dive centre in the world — more locations are coming soon.

Last updated September 7, 2026