Muscle
Wakeboarding: Forearms are used all the time. Ankles, knees, abs and neck muscles also get a good workout. There is likely to be significant impact through the lower body when doing big jumps as landings can be hard. 3 stars
Kitesurfing: Kitesurfers build up arm and shoulder muscles rapidly, and tone their upper body; they are also likely to acquire strong hams and quads. 4 stars
Mental
Wakeboarding: Seasoned wakeboarders swear that anyone who gives the sport a try, and gets decent instruction, will be hooked. The variables are controlled, so riders can fine-tune their experience. 4 stars
Kitesurfing:The danger - due to unpredictable wind currents - gives a special rush. Suddenly taking off at full tilt makes kiters feel they are at the edge of losing control; harnessing that is the ultimate challenge. 5 stars
Injury risks
Wakeboarding: Lighter equipment and well-made bindings that secure the rider to the board have reduced injuries - feet come out of the clasps only when the crash is so severe, it is better they are released. 4 stars
Kitesurfing: Vulnerable to strained arm muscles, sore wrists and elbows, whiplash and being swept out to sea. Gear can now be set up to gain more, or less, power from the wind, which has improved safety. 3 stars
Popularity
Wakeboarding: One of the fastest-growing sports and popular with teens, especially in countries with a surfing/beach scene. Britain's leading coach, Matt Crowhurst, has helped nudge it into the UK mainstream. 4 stars
Kitesurfing: Kitesurfers start young, and long before body strength is optimum. The kiter who has been at the top of the field for many years now, Aaron Hadlow, has been there since his mid-teens. 4 stars
Cost
Wakeboarding: To get started with the basic kit of a board, bindings, life jacket, wetsuit and board shorts, you can spend anything from £500 to £700. Joining a club can cost around £200. 3 stars
Kitesurfing: Expect to fork out £100 for a day class. Good kites cost from £500 to £1,000, and you'll need a few different sizes - for varying conditions - plus a board and wetsuit. 3 stars
