Diablo Lake in North Cascades National Park. You will not believe the turquoise color of this lake - it's unbelievable! Camping, hiking, kayaking and more are available here. Click through to read about our trip and get some tips, or save to read later. Camp / Kayak / Hike / Seattle / Washington / Bucket List
Diablo Lake is a reservoir in the North Cascade mountains of northern Washington state, USA. Created by Diablo Dam, the lake is located between Ross Lake and Gorge Lake on the Skagit River at an elevation of 1,201 feet (366 m) above sea level. Diablo Lake is part of the Skagit River Hydroelectric Project and managed by Seattle City Light.