Discover Portage Glacier
Step aboard the M/V Ptarmigan, a custom-designed vessel with a heated cabin and open-air top deck, offering unmatched glacier views. Glide across iceberg-dotted waters, marvel at cascading waterfalls, and get up close to the towering face of Portage Glacier. A U.S. Forest Service ranger narrates the journey, sharing fascinating insights into Alaska’s natural wonders in the Chugach National Forest and Portage Valley.
About the Cruise
This cruise offers a rare chance to see one of Alaska’s most accessible glaciers up close, making it a must-do experience for visitors of all ages. The short, one-hour duration makes it easy to fit into any itinerary while still providing incredible views and a true taste of Alaska’s wild beauty. Five departure times are available every day, May 15th through September 16th, 2025.
M/V Ptarmigan Highlights
- The only boat operating on Portage Lake
- Onboard Narration
- Fully enclosed, heated cabin
- Expansive windows for enhanced viewing
- Topside view-deck offers a great vantage point for watching the glacier “calve,” and for visitors to enjoy the fresh air
- Holds up to 144 passengers
- 80-foot vessel was built on site at Portage Lake to U.S. Coast Guard specifications
- 6.5-foot draft for minimal environmental impact
- Sound system cannot be heard from the shore, ensuring preservation of this naturally peaceful setting for wildlife and other visitors
- Hull designed for safety in ice-filled waters
- Operates under special use permit with the Chugach National Forest and is an equal opportunity provider
Driving Directions
- Take the Seward Highway south from Anchorage
- Take a left on Portage Glacier Road (milepost 78.9) approximately 48 miles out of Anchorage
- Travel 5 miles to fork in road; take the right-hand fork and travel a 1/2 mile. Turn left at the Portage Glacier Café (401 Portage Lake Loop)
- Arrive at 1500 Byron Glacier Road, Girdwood AK 99587
Activity Details
Just an hour’s scenic drive from Anchorage along the breathtaking Seward Highway, Portage Glacier offers an unforgettable Alaskan adventure. Board the M/V Ptarmigan, a custom-built sightseeing vessel designed for optimal glacier viewing, including a heated cabin with expansive windows and an open-air top deck.
During the one-hour cruise, you’ll glide across the iceberg-dotted waters of Portage Lake, journeying past cascading waterfalls and steep mountain cliffs. Get up close to the towering wall of Portage Glacier, and with a bit of luck, witness the thrilling sight (and sound!) of calving ice. A U.S. Forest Service ranger provides expert narration, sharing fascinating insights into the area’s history, geology, and wildlife.
This budget-friendly and family-friendly tour operates daily from mid-May to mid-September, with five departures to fit your schedule. Whether you’re exploring Southcentral Alaska in a car or RV, this is the perfect stop to experience one of the state’s most iconic glaciers.
What’s included in your ticket:
- A one-hour cruise on Portage Lake
- Stunning views of Portage Glacier and surrounding landscapes
- Indoor heated seating and outdoor viewing areas
- Engaging onboard narration about the area’s history, wildlife, and glaciology
What’s not included:
While no food or drinks are sold on board, you are welcome to bring your own snacks and beverages. A camera or binoculars are also great to have for capturing the stunning scenery.
Itinerary
Arrival & Check-In (10–15 Minutes Before Departure)
- Guests arrive at the dock and check in for their scheduled cruise.
- Boarding begins shortly before departure.
Departure & Welcome Aboard
- The boat departs from the dock on Portage Lake.
- Guests are welcomed with a brief introduction and safety announcement.
Scenic Cruise Toward Portage Glacier
- The vessel makes its way across Portage Lake, offering views of surrounding mountains and waterfalls.
- Onboard narration provides insights into the history, geology, and wildlife of the area.
Up-Close Glacier Viewing
- The boat approaches Portage Glacier, allowing time for photos and observation.
- Crew members share interesting facts about the glacier’s history and ongoing changes.
Return Journey Across Portage Lake
- Guests enjoy final scenic views while the boat returns to the dock.
- Additional narration and opportunities for questions.
Docking & Disembarkation.
Highlights
This cruise offers a rare chance to see one of Alaska’s most accessible glaciers up close, making it a must-do experience for visitors of all ages. The short, one-hour duration makes it easy to fit into any itinerary while still providing incredible views and a true taste of Alaska’s wild beauty.
Unlike many glacier tours that require long hikes or flights, this cruise brings you right to the face of Portage Glacier with minimal effort. Guests can take in the towering blue ice from the comfort of a heated indoor cabin or step onto the open deck for an unobstructed view. The surrounding scenery, with rugged peaks, cascading waterfalls, and floating icebergs, adds to the magic of the experience.
Onboard narration enhances the journey with fascinating details about the glacier’s history, rapid changes, and the unique environment of the Portage Valley. The combination of accessibility, stunning natural beauty, and engaging storytelling makes this tour a standout experience in Southcentral Alaska.
FAQs
1. How long is the cruise?
The Portage Glacier Cruise lasts approximately 1 hour. This includes both the scenic journey to the glacier and time spent viewing the glacier and surrounding landscapes.
2. What should I bring on the cruise?
We recommend bringing comfortable clothing suited for the weather, a camera, binoculars, and any snacks or drinks you’d like to enjoy on board. While we don’t sell food or drinks, you’re welcome to bring your own. Don’t forget sunscreen and sunglasses!
3. What happens if the weather is bad?
The cruise operates in most weather conditions, but Portage Glacier Cruises reserves the right to cancel or delay the trip due to severe weather or safety concerns. In such cases, guests will be offered a full refund or rescheduled for another departure.
4. Is there parking available?
Yes, there is parking available at the dock, but we recommend arriving early during peak times to secure a spot.
5. Do I need to be physically fit to take the cruise?
Guests should be in good health and able to board the boat. If you need assistance boarding or have any special mobility requirements, please notify us in advance. We’re happy to provide support.
6. Will there be a guide on board?
Yes, the cruise features narration by U.S. Forest Service staff, who will share fascinating insights into the history, wildlife, and geology of the Portage Glacier and its surroundings.
7. What if I don’t see any wildlife during the tour?
While we often encounter wildlife such as mountain goats, bald eagles, and other species, sightings are not guaranteed. Wildlife viewing is a natural experience and can vary, but we promise an unforgettable scenic tour of the glacier and surrounding area.
8. What if I need to cancel my booking?
Cancellations must be made at least 24 hours before your scheduled departure to receive a full refund. Cancellations made within 24 hours are non-refundable.
