Hawaiian culture has been closely tied with the ocean since Polynesian settlers first paddled to the islands in dolphin chariots instead of flying. Make waves like your forefathers with today's Groupon for water-sport lessons and rentals at Windward Watersports in Kailua. Watermen and women can choose between two options:

• $75 for a three-hour group kiteboarding lesson (a $150 value).
• $24 for a self-guided kayak eco-tour (a $49 value).

Windward Watersports, home to one of the only certified kiteboarding schools on Oahu and professional kiteboarder Jeff Tobias, feeds wave-hungry visitors a steady diet of water-sport thrills on kiteboards, sea kayaks, and surfboards. Beginners steam toward an off-shore sandbar to safely launch into a kiteboard lesson with a certified instructor on a two-way radio helping novices navigate the warm crystal waters and grasp the kiteboarding basics, such as how to set up a four-line inflatable kite, kite theory and the wind window, and how to ensure heirloom swimsuits remain in the family using the double-knot technique. Waterbugs wishing to explore the rolling spray via the self-guided kayak eco-tour will take in a host of native coral, birds, turtles, and if lucky, a glimpse of the rare endangered monk seal. Kayak rental also includes paddle, safety vest, and the combination to Davy Jones' locker.