This trail has a few options mileage options and can accommodate different levels of fitness.  There is a boat you can choose to knock off some mileage or not.   If you decide to use the boat, Upper Two Medicine Lake is approximately 4 mile round trip hike.   The hike along the  south shore of Two Medicine Lake and Upper Two Medicine Lake clocks in around 10 miles around trip.   Purchase your tickets for a boat  ride before heading off on your hike if you plan to use the boat on your return leg!   Two Medicine is located 5 miles from the East Glacier Park Entrance and convenient.