Diablo Lake Boat Tours

Event Details

Adult (Age 13-61)
Senior (Age 62+)
Youth (3-12)
Infant (0-2)

Come along for a learning experience nearly a century old! Seattle City Light has offered tours to the Skagit Hydroelectric Project in one form or another since 1928. Now in partnership with North Cascades Institute, the Skagit Tours continue as an immersive educational experience.


July 1 - Sept 6: Tours offered twice daily, Thursday through Monday, at 11:30 am and 2:30 pm (check-in begins at 10:45 am and 1:45 pm). Tours are approximately 1.25 hours.

Sept 11 - 26: Tours offered twice daily on Saturdays and Sundays only, at 11:30 am and 2:30 pm (check-in begins at 10:45 am and 1:45 pm).Tours are approximately 1.25 hours.

On the Diablo Lake Boat Tour, you will learn about the area's natural history, including biodiversity, geology, as well as the unique relationship between the North Cascades environment and the Skagit River Hydroelectric Project, which provides clean, low-cost, renewable power to the citizens of Seattle. The history of the Project and the area’s indigenous inhabitants are also included in this multifaceted cruise.


The adventure begins by boarding the Alice Ross IV – a stately watercraft designed especially for Skagit Tours by Rozema Boatworks in Bayview, Washington. The boat features heating and air conditioning, as well as an onboard head, and the cabin’s roof is mostly glass to allow for the best possible views. A 14-foot open aft deck also allows passengers to enjoy the tour from outside.


As you cruise the glacier-fed Diablo Lake, you’ll learn about the surrounding wildlife habitat and enjoy views of snow-clad mountain peaks, islands and waterfalls. Experience parts of the lake that are hidden from view when traveling the highway or trails. Your tour will come alive with stories about the early explorers and settlers in the area and the challenges of building the three Skagit River Hydroelectric Project dams and powerhouses in a very remote location.

The tour ends with an organic and locally-sourced snack pack that has been crafted by the chef at the North Cascades Environmental Learning Center, located on the shores of Diablo Lake. This delicious snack pack is included in the cost of admission and has been individually packaged to meet public health guidelines. We cannot accommodate special diets, but there are multiple healthful items in each package.


Whether this is your first time taking a Diablo Lake Boat Tour, or you have joined us many times before, this is an adventurous and enriching way to experience the inspiring North Cascades landscape.

For more information, call (360) 854-2589 or send us an email.

Coronavirus safety measures include:

  • Tour capacity limited to ensure physical distancing can be maintained
  • Tour boat has an open-air deck and good air circulation
  • Face coverings are required for all staff and passengers
  • Hand sanitizer provided for all passengers prior to boarding tour boat
  • Increased cleaning and disinfecting protocols

Boat Tours are ADA accessible!