1. Float trips. I'm not talking about whitewater rafting, just some nice somewhat fast moving water with trout in it and maybe a couple of Class II rapids.
If I were a highway patrolman, everytime I saw a vehicle towing a raft on a trailer returning home late in the day or in the evening, I would pull him over and make the driver walk a straight line.
and....the most obvious of all......
2. Ice fishing. Around here, its known as "ice drinking".