Not all the fun happens below the sea here. For fun atop the water, head to Lac Bay, the largest bay in the ABC Islands (Aruba, Bonaire and Curaçao, for the uninitiated). Kayaking through the resident mangroves, you’ll see all manner of birds and fish—particularly if you rent a glass-bottomed kayak. Meanwhile, the combination of consistent trade winds and sheltered shallows makes for some of the world’s best windsurfing—even if you’re new to the sport.