[jmcvietnam]

Hệ thống quảng cáo SangNhuong.com

how about a cross-country mountain bike race or trail running?

http://www.youtube.com/watch?v=H4oWc_OZG1A

http://www.youtube.com/watch?v=QerSs...eature=related

triathlon (swim,bike,run) is nice and becoming popular in certain countries, but very very few people are into this. In Vietnam maybe not more than 15-20 people (residing). It's a nice sport but many are not into it because it takes a lot of time to train for with 3 sports.