1, organizer W& ~# }$ G+ _8 r6 m3 |' T. x
2, commitment6 r) M. M; g0 E! d( o7 l4 t) U
3, every paddler is different, some are recreational, some are serious competitors * B, d# ^9 m c$ a4, cost0 c# M( l* i8 a. D0 k
5, fitness level 2 u0 p" P# h5 L2 K, P& A% @6, whatever other factors