tgreene
Reefer
...With no tethers.
...But with no spools or reels, either.
Perhaps the ice can easily be broken through? I mean, if there's no overhead, then it's not really ice diving...
...And there would be no need for tethers, doubles, spools or reels.
Maybe that's it? (Please tell me that's it...)
I sure hope that's it - there's not one of them that's got a reg setup for overhead diving... Not even one long hose. And the only reg set that we can see - presumably the instructor's - has a yoke first stage. One good whack on any overhead, and no mo' breathing gas...
Interestingly, the regulator that he (the "instructor") is diving is an Apeks XTX200... The only battery-operated first stage in the industry. Yeah, talk about making things overly-complicated, with a HUGE failure point...
You can clearly see the tethers in the following pics...