Hmmm, I clocked 5 degrees on the 146, and -2 on the surface.. call me a woose, but that's coldWe (freedivers) were group J - first buoy from the pontoon in about 8m. The freediver who got interviewed was Virginia Bell.
It wasn't actually that cold - warmer underwater than on the surface!
Cheers for the name tag on Virginia, I'll let you know when the DVD is completed