Deep sea fishing
One of the populair sports on Aruba, locals and tourist alike, is fishing. Not just sitting next to a calm stream and see what happens, sea fishing. Go out to the open sea a few hours on one of the many fishing boats that offer trips and get to take home a part of what you catched. Most charters are in business for years and have a rich experience on where to go and how to catch those big ones. Always a fun trip, even if you don't like fishing!