Sterling is the gateway to the Swanson River and Swan Lake canoe routes, a chain of rivers, lakes, streams and portages in the northern lowlands of the
Kenai National Wildlife Refuge. The trips are perfect for novice canoeists, as rough water is rarely a problem and portages do not exceed half a mile in length on the Swan Lake system or a mile in the Swanson River area. The Swanson River system links more than 40 lakes and 46 miles of river, and a one-way trip is 80 miles, beginning at Swan Lake Rd and ending at Cook Inlet in
Captain Cook State Recreation Area. The easier and more popular Swan Lake route connects 30 lakes with forks in the Moose River; the one-way trip is 60 miles.