Or another alternative is multi-sport, you can get a good mixture of activities so you can spread out the physical punishment. A good example: http://www.coast

Or another alternative is multi-sport, you can get a good mixture of activities so you can spread out the physical punishment. A good example: http://www.coasttocoast.co.nz http://www.coasttocoast.co.nz 3km beach run, 55km cycle, 33km run over a mountain pass, 15km cycle, 67km kayak, 70km cycle