Here you'll find one of the most accessible wildlife viewing areas in Alaska. The marsh is a rest area for migratory birds including trumpeter swans, rednecked grebes, golden eyes, and pintails. Also watch for beavers, moose and bald eagles. You may even spot salmon spawning in the deeper water.
Crystal-clear Williwaw Creek and its bank-side trail system in Portage Valley at the head of Turnagain Arm offers exceptionally good conditions for watching spawning in action. Coho, sockeye and chum salmon converge on the creek as it winds through the brushy flats beginning in mid-August, with some late-arriving fish still present after first frost in the fall.