Listings >> Do >>Free >>Designated Trails >>3. Summer >>Day Trips >>Whittier Portage Pass Trail Great day hike or overnight hike Trailhead accessed on Whittier side of Tunnel – Learn about the Whittier Tunnel HERE. Take a dip in Portage Lake and view Portage Glacier 1.5 miles (one way) to the pass – Moderate Difficulty 3 miles (one way) to the lake – Moderate Difficulty This Trail Information was made possible by: Slack Tide Gallery Portage Pass Trail Whittier 99693 AK US Get directions Local Listings Sponsor - Thx for your support. Portage Pass Trail 3. Summer Day Trips Designated Trails Do Free Whittier Photo gallery All photos (10)