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(360) 854-2589


A significant wildlife burned near Newhalem and Diablo in late August. While recent rains have helped control the fire, City Light has substantial work to do to restore normal hydroelectric project operations and repair some damaged infrastructure at the Skagit Project. City Light has therefore decided to cancel all remaining Skagit Tours for the 2015 season and will be issuing full refunds for tours already booked in September. City Light regrets any inconvenience this causes, but hopes you understand that the utility strives to offer a safe and enjoyable tour experience. Thank you for your understanding and support.
Diablo Lake
Boat Tours
Power Tours
Walking Tours
Save the Date for the 10th Anniversary Celebration!

Plan a getaway to experience the majestic beauty of the North Cascades and celebrate the 10th anniversary of the North Cascades Environmental Learning Center. Seattle City Light, the North Cascades Institute and the National Park Service invite you to a celebratory open house on Aug. 23, 2015. Come and enjoy a free BBQ picnic with local farms, Diablo Lake Boat Tours, campus sustainability tours, canoe voyages, naturalist hikes, family-friendly activities and more.
  • When: Aug. 23, 2015 from 10 a.m. to 3 p.m.
  • Where: North Cascades Environmental Learning Center
  • Phone: (360) 854-2599
  • No RSVP Required * Space is limited: arrive early to sign up for activities
  • Tip: arrive the day before and stay the night with the North Cascades Institute's Base Camp program and enjoy comfortable lodging, delicious meals and a special presentation with aerial photographer John Scurlock from his book "Snow & Spire".
Learn more about the 10th Anniversary North Cascades Environmental Learning Center Celebration.

Experience the majestic beauty of the North Cascades this summer on a Skagit Tour. Skagit Tours provides a recreational and educational experience for people of all ages.

Choose from three tour options including a scenic boat tour on Diablo Lake, a popular Power House tour or a free walking tour around the historic town of Newhalem.

In 1918, Seattle City Light's second superintendent, J.D. Ross, had a vision to generate power and electricity by hydroelectric dams for the City of Seattle through the Skagit River Hydroelectric Project. Three dams along the Skagit River now generate about 20 percent of the electricity that powers Seattle. These historic, magnificent and powerful dams include the Gorge Dam, Diablo Dam and Ross Dam.
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