1, organizer8 F; y [/ {1 V7 v: C
2, commitment 1 w' t# W$ R* K3, every paddler is different, some are recreational, some are serious competitors8 [- P2 v7 Q( z$ |% S9 j1 c4 N
4, cost ! m7 i2 Y. ]" k5, fitness level9 j# _, H% a2 ?8 ?8 ^- p
6, whatever other factors