Portage Glacier is found along the Seward Highway. A sightseeing vessel, the M/V Ptarmigan, takes passengers across Portage Lake, passing by waterfalls and mountain cliffs towards the glacier. The vessel is equipped with a heated cabin featuring large windows and an open-air top deck. Passengers can view the glacier closely, including the calving of ice. The journey includes narrated explanations provided by a U.S. Forest Service ranger about the area's history, geology, and wildlife. This sightseeing opportunity is available during the seasonal months from mid-May to mid-September. Ensure to check exact dates before planning your visit.