1, organizer! ~ ~/ P2 p3 S. Z$ c
2, commitment! f9 b. i7 T. N- I( ^) g
3, every paddler is different, some are recreational, some are serious competitors4 ?9 a3 z8 c/ D
4, cost; Z- D! J# J7 T0 X$ r& ]
5, fitness level ' N R* R' b6 e# z! k4 S" @6, whatever other factors