Enjoy the fresh air and admire nature at a leisurely pace with a mild hike at Cunningham Falls State Park. The walk to the falls is relaxing and the reward for completing the trail is a breathtaking view of Maryland’s largest cascading waterfall. Spend the night in a log cabin, luxury or not, at Ole Mink Farm Recreation Resort where you can enjoy a fishing pond, swimming pool, and game room. Not hard core enough for your dad? Pitch a tent at Catoctin Mountain National Park and cook dinner on the grill. If dad loves to travel in his RV, there are sites on Catoctin Mountain for that too. You can find them at Owens Creek Campground.