PSAI Expedition Mixed Gas Closed Circuit Rebreather Diver is the second phase of the PSAI mixed gas CCR pathway. After Fundamentals Mixed Gas CCR at 60 metres, you extend trimix diluent diving toward expedition depth with qualifying dives to approximately 75 metres, or 250 feet, under staged decompression discipline.
Centres run a multi-day expedition programme with theory, equipment workshops and deep open water CCR training dives. You refine bailout strategy, team protocols and fault management at depths where small mistakes stop being recoverable. Logged mixed gas CCR experience at 60 metres between phases is part of the progression PSAI expects, confirmed by your training centre before you splash.
This is not a shortcut past Fundamentals. Arrive with recent 60 metre CCR dives, honest gas plans and tolerance for long deco schedules. Expedition training is repetitive by design. Your instructor would rather bore you on drills than write incident reports.
PSAI Expedition Mixed Gas CCR Diver is assessed through theory and practical in-water performance at expedition depth on your qualified unit. Your instructor signs off when skills meet PSAI standards on qualifying dives.
Quick answers about this qualification. For anything else, use live chat or browse bookable activities below.
Find activitiesIt is the expedition-depth phase of PSAI mixed gas closed circuit rebreather training, qualifying dives to approximately 75 metres after Fundamentals Mixed Gas CCR at 60 metres.
It focuses on expedition-level planning, bailout discipline and deep trimix diluent CCR skills, not first-time rebreather introduction.
No on the PSAI pathway. Expedition Mixed Gas CCR follows Fundamentals Mixed Gas CCR with logged mixed gas CCR experience at 60 metres confirmed by your centre.
Leave a comment when you book with your Fundamentals certification and 60 metre CCR log so the centre verifies progression before you commit.
Qualifying dives target approximately 75 metres, or 250 feet, per PSAI Expedition Mixed Gas CCR programme standards. Exact performance requirements are set by your instructor against current PSAI criteria.
This is deep technical diving with staged decompression, not recreational depth with a rebreather twist.
PSAI expects logged mixed gas CCR dives at 60 metres between Fundamentals and Expedition phases. Your centre confirms the detail against current standards before enrolment.
Arriving straight from Fundamentals without intermediate dives is poor practice even when paperwork might allow an exception. Most instructors want recent 60 metre CCR time.
A multi-day programme with theory, workshops and deep open water CCR training dives. Centres vary on dive count and calendar length depending on site access and helium logistics.
Deco times at expedition depth eat whole days. Do not plan a shallow fun dive holiday in the same week unless you enjoy sleep deprivation.
Fundamentals establishes 60 metre mixed gas CCR with six structured training dives. Expedition extends depth, planning complexity and bailout demands toward 75 metres.
Skills overlap but consequences grow. Expedition training assumes Fundamentals habits are already automatic.
Expedition-grade bailout planning with multiple cylinders and gases sized for realistic open circuit ascent and decompression from deep CCR dives. Your centre publishes the exact rig for your unit and profile.
Bailout is not a token pony at this level. Ask for the gas plan template when you enquire and budget accordingly.
Expect substantial theory assessment on deep mixed gas physiology, decompression and emergency protocols. Expedition courses are not pass-on-attendance holidays.
Deep open water performance on qualifying dives matters equally. You need both the planning and the loop control at depth.
Weather, visibility and swell regularly disrupt expedition training. Centres reschedule or extend programmes when safety margins shrink.
Do not book non-refundable travel tight against your expected qualifying dive. That is normal advice on deep technical courses.
The same unit-specific rules apply as Fundamentals. Your Expedition card matches the CCR model you qualify on. Centres must teach and support that exact hardware.
Confirm instructor availability and manufacturer service compliance for your unit before you book helium and a week off work.
adventuro lists PSAI centres with depth access, helium supply and mixed gas CCR instructor coverage for expedition training. Compare bailout requirements, boat support and logged experience policies.
Train where you can continue logging expedition-depth CCR dives with a team that knows your unit. Certification is the start of depth experience, not the end.
