One of the fastest snacks to prepare, cheese and crackers is as easy as opening a box, cutting cheese in slices or cubes and setting it all out to eat. Make a cheese platter the night before (keep it refrigerated, of course). When you're ready for a refuel, simply remove the cheese and break out the crackers.
Great cheeses for snacking outside are semisoft to hard cheeses. Cheeses such as mozzarella, Swiss, Gouda, cheddar or Muenster come in blocks that are easy to cut and serve. Pair cheese with an array of crackers, from saltines to fancy water crackers. Of course, you don't want to leave cheese out for too long, but we don't think a bunch of hungry swimmers will leave leftovers.