Day Hike - Diablo Lake & Happy-Panther


Day Hike - Diablo Lake & Happy-Panther

One-way hike following turquoise waters above Diablo Lake and through verdant forest along Ruby Arm.

COVID-19: Learn about our most up-to-date guidance for participants and leaders on our COVID-19 Response page. All participants and leaders must agree to the COVID-19 Code of Conduct before participating in this Mountaineers activity.
  • Moderate
  • Easy
  • Mileage: 10.5 mi
  • Elevation Gain: 1,400 ft

9AM, North Cascades Institute parking, Hwy 20

Enjoy this one-way hike with car shuttle along two turquoise lakes in the North Cascades. We start from Diablo Dam and up a gentle climb to a suspension bridge and cross Ross Dam, then on to Happy-Panther (named for the creeks). The forest is supreme here - lichen, fern, salal carpets plus tumbling creeks will accompany you on this 10.5 mile journey.

Lodging can be arranged at the North Cascades Institute prior to or after the hike, if you'd like to extend your time in the North Cascades.

More info:


Diablo Lake & Happy-Panther

  • Green Trails Diablo Dam No. 48

    Green Trails Mt Logan No. 49

    Trails Illustrated North Cascades National Park
  • See full route/place details.
Required Equipment

Required Equipment

The Ten Essentials

  1. Navigation
  2. Sun protection
  3. Insulation (extra clothing)
  4. Illumination
  5. First aid supplies
  6. Fire
  7. Repair kit and tools, including knife
  8. Nutrition (extra food)
  9. Hydration (extra water)
  10. Emergency shelter
Trip Reports