Sun Lakes-Dry Falls State Park is in the Columbia River Plateau of Washington State.
Washington State Hwy 17 runs through a large portion of the park, and there are multiple entrances.
Most tourists arrive via US Hwy 2 which runs across the state from Everett to Newport (near Spokane). In the Seattle Metro area, there are short cuts to US Hwy 2 from Bothell on WA State Hwy 522, and Duvall (east of Redmond) on WA State Hwy 203. Otherwise, take the I-5 Fwy exit #194 in Everett where US Hwy 2 begins. The turnoff to State Hwy 17 south is just west of Coulee City.
From Grand Coulee Dam, take Hwy 155 south, and turn right at US Hwy 2. State Hwy 17 is just over four miles (left turn), on the other side of Coulee City.
The overlook at Dry Falls gives a spectacular view on a clear day. One small section that can only hold a few people is so close to the edge, it may make you dizzy. There are railings throughout the area, though small children must be closely watched and supervised.
At Sun Lakes there is an RV park and a golf course next to the lake. Tent camping and privately-owned cabin rentals are also available. Powerboats (5 mph max) can be rented or brought in by trailer. (Use caution on the steep downhill roadway.) Bicycling is very popular at the park. There's a 2.6-mile (4.2-km) loop trail around Umatilla Rock.
A Washington State Discover Pass is required for all private vehicles entering the park (except for through passage on Highway 17). This includes the parking lot at Dry Falls just off the highway.
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