I have a good friend in Boynton Beach, FL who had a very serious type II DCS hit. He was brought back into Boynton Harbor Marina. I was not there and can't vouch for details. I was told they asked what kind of coverage he had and he said DAN. I was told the response to this was to order the helicopter. The distance from Boynton Beach to West Palm, where the chamber is located, is about 15-20 miles. He was helicoptered to the chamber and waited 3-4 hours for his treatment. He did fine, is back to diving, I did his 1st dive with him post DCS and we did about 10 minutes at 15 feet, he was on oxygen. He dives more typically, though conservatively, today.