Here’s an update: we all need to catch a ferry in the evening right after the dive and
@Wibble is again planning to jump last and do 2.5 hours runtime.
We are contemplating what’s an acceptable level of equipment to leave him on the deco station. So far we have a spare DSMB, fluorescent tube, soggy sandwich and some water. I suggested a rubber dinghy and a PLB but the rest of the group thinks it’s over the top :-( Someone also offered to swap fins with Wibble as better fins would help with swimming back to shore.
More details: water temp about 12 degrees Celsius, maybe 2 hours offshore in North Atlantic, weather is “grand” (slight drizzle, F2-F3).