Bike trail passes in WI are generally 5 dollars.
Hiking is free.
Toss the dog in the car along with bottled tap water, lunch for two (p&j sandwitch for me, kibble for him) and yer beater hiking boots and drive out to the trail head for a day of dog/owner hiking.
It's almost free just so long as you don't count gas price, cost of p&j, and the rising cost of kibble, etc.
Above can be done in any state/region with any sort of (outdoorsy) pet, spouse, sig other, or friend.Go here for more info...
Thats my day off plan for tomorrow.
I used to do something similar when I lived in Boston:
If yer a Boston bound type o' person you caneven take the T to the Blue Hills ReservationMBTA:
The Great Blue Hill and Houghton's Pond sections are accessible from the Red Line to Ashmont Station. From Ashmont, take the high speed line to Mattapan. The Canton and Blue Hills bus services the Trailside Museum and Great Blue Hill on Route 138. For the Houghton's Pond area, exit the bus at Blue Hill River Road. Cross the road and walk one mile east on Hillside Street.
Again cheap outdoorsy fun that couples excercise with fun and put YOUR tax dollars to work for you.