Take the water taxi to caye caulker. Ditto on Rasta Pasta (the jerk chicken burrito) Tippin a few at the Lazy Lizard at the split. Hangin out out the split for a while, bring your snorkel stuff. Walk the streets and the shops, meet some of the locals. Watch the kids fish from the main pier later in the afternoon and if you like bird watching go to the nature reserve. We always bring a couple pair of small cheap binoculars.