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Your year-round retreat...

Blue Diamond Marina & Resort is Priest Lake's deepest water marina, located on the secluded west shore of Cavanaugh Bay just 5 miles north of Coolin, Idaho. We offer all-season deep-water moorage in covered and uncovered slips with access for the physically challenged, inside secured storage, a wide variety of modern boat rentals, lakeside lodging and The Waterfront Restaurant specializing in family style Italian cuisine.

Enjoy the pristine beauty of Idaho's Crown Jewel this winter! Priest Lake is home to an extensive system of cross-country ski and snowshoe trails and over 400 miles of groomed trails for snowmobiling. Stay with us in our cozy lakeside lodging and you'll be a stone's throw away from the Rocky Point Trailhead. For those of you who find us on your snowmobile adventure, pop in for a cup of hot chocolate at The Waterfront - on winter weekends the restaurant is open as a warming hut.

Thank you so much... "our stay with you was a much needed break. We enjoyed the beauty, fantastic weather, and your kind hospitality. We hope to return soon. With appreciation,
—R and M. Otis Orchards, WA"

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Recreational opportunities abound year-round at Blue Diamond and in the surrounding Priest Lake area.

Summer activities include water sports, fishing for trophy Mackinaw Trout, hiking, biking, photography, river running, golfing and huckleberry picking.

Fall and winter weather turns recreational pursuits to such activities as hunting, mushroom gathering, ice fishing, cross country skiing, snowshoeing and snowmobiling on 400 miles of groomed trails. Click here for groomed trails update.

Blue Diamond Marina & Resort is the trailhead for the
Rocky Point Trail System, part of the North Idaho Park N' Ski program. The trail winds through 4.3 miles of forest and lake view terrain. If you are staying at Blue Diamond, use of the trail is free. For day-use visitors, Park N' Ski season passes and 3-day permits are available at our office.

Location: 4.4 miles north of Coolin, adjacent to Blue Diamond Marina and Resort
Difficulty: Intermediate
Distance: 4.3 miles/6.9 kilometers
Grooming: Occasionally
Snowshoeing: Yes
Warming hut: Yes
Backcountry skiing potential: Yes
Restrooms: Yes
Dogs: Yes, allowed on leash only


Blue Diamond was originally built in the early 1900s as the logging truck repair center for Diamond International Corporation and continued in that capacity for several decades until it was converted to a marina in the 1960s. By the late 1980s the aging buildings were suffering from their years of history. Restoration and renovations began in the mid 1990s, and today, Blue Diamond stands as a modern marina while still retaining the ambiance, charm and relative solitude reflective of the facility's history.