Han made it to the apartment by 8:10 am and we headed to Birch State Park. Luis got there just in front of us. We all geared up and headed for the water. Decided to swim NE to the Ledge off Tower 17. Didn't quite make it that far North, but we got well North of Tower 16 and ran the ascents in 30 feet of water. Luis held the reel. Han and I buddy breathed and then ascended while buddy breathing. Han did just fine, but was a little slow. The second ascent was the CESA and, again, Han did fine, but he ran out of air at 10-12 feet and was hurrying to the surface. My computer warmed me the ascent rate was too fast, but I checked the computer profile later, and he was well within PADI's 60 ft/min ascent rate.
After the CESA, Han and I descended, picked up Luis and headed for Tower 15. We went slowly to give Luis time for photographs. At a little past 60 minutes, I surfaced to see where we were I didn't recognize the topography, but we were just a little North of Tower 15. Descended, corrected and swam in.
Water temperature was 76; Dive Time was 72 minutes; consumption rate at an average depth of 18 feet was 26.71 psi/minute; SAC rate was 17.28 psi/minute and the RMV was 0.45 ft3/minute.