18. Go white water rafting or kayaking in Maine
There’s nothing like the splash of water in your face as you rush through intense rapids. Throw on your helmet, hop in the raft, and soar down the Class 5 Penobscot River, Class 5 or 3 and 4 Dead River, or Class 5 or 3 and 4 Kennebec. If you’re in the mood to make a weekend of your trip, many rafting companies have cabins with reasonable camping deals.