The northern portion of the park is a wilderness area. Access is possible via boat, using Ootsa and Whitesail Lakes. The Park is between Burns Lake and Houston. BC Parks provides this explanation: "To get from Chikamin Bay on Whitesail Lake to St. Thomas Bay on Eutsuk Lake in Tweedsmuir Provincial Park, boaters are required to winch their boats over a 600 metre rail portage. Boats to about 7 metres in length can be portaged." Two other common access points are recommended, and maps are provided on the BC Parks web site: Little Andrews Bay Provincial Park and Wistaria Provincial Park.
Burns Lake, B.C. is considered to be the northern gateway for fly-in tours for sightseeing, hunting and fishing; these are offered by local outfitters in the town. ==Ecology==