A stop at any visitor center will yield huge numbers of brochures that required many trees to produce full of things to do that will transfer funds from your account to theirs. The higher the cost, the more likely the kids will enjoy the activity.
Views based on actual experience.
Boat: 32' 1996 Albin 32+2, single Cummins 315hp
40+ night per year overnighter
2007 Alpenlite 34RLR
2006 Chevy 3500 LT, CC,LB 6.6L Diesel
Ham Radio: VP9KL, IRLP node 7995