1, organizer3 \* x# S% u0 Y9 ], f' B: G
2, commitment: E& u# J b$ _) D( N
3, every paddler is different, some are recreational, some are serious competitors( M' Y* F. m/ R; H+ d6 P1 T9 A0 Y$ w
4, cost0 b5 o* S; }2 \! [; F3 [% @
5, fitness level2 a# k( e+ z. f: o
6, whatever other factors