On a nice hot day, nothing is better than an Italian ice. They have many flavors, but I always wind up getting the lemon. It has bits of the rind in it and is sweet and tart. VERY refreshing.
Once in a while, they have cantaloupe. When they do, give it a try.
They will let you try a sample at no charge of all their flavors, so there is never a need to choose blindly.