1, organizer8 l9 h/ A1 p& Q9 ^9 \* L* f
2, commitment2 e6 l9 @4 N3 v6 f( Q
3, every paddler is different, some are recreational, some are serious competitors& r- x7 Q1 z. ~! Z) z
4, cost0 E- B2 w# l1 d6 A4 K' q4 G9 l
5, fitness level4 J& T8 `9 W6 j- z
6, whatever other factors