What to Wear
The "dress code" for the event is Summer Formal. That means dress to impress, but also dress for the elements (sun, wind & water), and be sure to have fun with it. Anything you'd wear to a nice restaurant on a summer day is appropriate. Also it may cool off on the water as the sun goes down, so consider bringing something to keep you warm after dark.
Please no denim, shorts or sandals.