Wouter,

choose a martial art with reasonable gloves and allowing low kicks. Very few injuries then, even fever if it is 'allowed' to take your opponent down and work on the ground. Kickboxing is murder on your toes, and Kyokushin karate is really bad for your knucles when you score big time by hitting your opponents elbow <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />
In my opinion and experience, martial arts is very safe, even full contact knock down style ones, if there is a refere to stop things when there is a mismatch or a coach with the fighters best interest to throw in the towel.. Those 'cage' events are ugly tough!


I think the blocart and landyachts look cool! With a helmet and a few rules of the road, it should be safe enough. Much safer than the average bicycle at least. If you hit something at speed, you will hit it with your legs first, not your head as with skiing/snowboarding/skateboarding/cycling. I would have loved to try one when I was younger, or even now. Too bad our parking lots are riddled with steel lightpoles and are rather small to boot. The upside is that on days with no wind, the black tarmac are heated by the sun and create their own thermals.