Dude -

I take a small, soft lunchbox-sized cooler on the boat - most have plastic clip nylon straps that will secure it to a hiking strap or mast base out of the way. The night before, throw two or three sport water bottles in the freezer. Into the cooler for the day, put one of the frozen bottles and two cold ones, a couple of power bars or energy gel packs, and a chapstick. I'm sure your instructor will have you in for breaks (unless he/she is SATAN!) - reload as needed from an igloo kept in your regatta wagon.

For that much sailing, wear good (read that as "well-fitted," not "expensive") gloves to protect your hands, and be prepared with a small first-aid kit in your vehicle that includes some medical tape and band-aids for any blisters that pop up. Sunscreen at a higher SPF than you usually use, and reapply at lunch time.

Sounds like fun - what class is this?

John