Things to Do in Oahu in 2026 – Tours & Activities | HawaiiActivities.com An incresingly popular water sport, stand-up paddling (SUP) is a fun and easy activity for beginners that's well-suited to couples, families, solo travelers, and groups of friends. Anyone can learn since the board is wider and more stable than a surfboard, making it easier to stand on, and movement mostly comes from paddling instead of catching waves, meaning you can SUP in both the ocean and in rivers! Take a quick SUP lesson then head out on the water to paddle by yourself!