Shorty Wetsuits
Many people like to snorkel in total comfort. These shorty wetsuits help keep your body warmer and also provide some flotation. Hawaii's generally warm water temperatures vary from 72º(winter) to 80º(summer). Adults and Children from XXL to XS. $15/week.

Snorkel Vests
Adults and Children. This quasi-inflationary device now allows the intrepid nay-sayer to shut up and get wet with more comfort, i.e., security, i.e. insulation from the downward whorl, the deep and merciless suck of the wild, ravaging sea that, given a ghost of a chance will drown you in a microquark, and you know it. I.e., it's not a life jacket, but it floats, but not like a cork, but it won't let you sink either. I.e., inflate to taste, snorkel at your own level.