Banks Lake is a stunning 27-mile-long reservoir in northeastern Washington, offering swimmers a spectacular backdrop of desert landscapes and dramatic geological formations. This artificial lake, created by the Grand Coulee Dam, features pristine waters surrounded by high basalt cliffs that create a truly unique swimming experience. The lake's character combines serene mountain vistas with the surprising urban convenience of nearby recreational facilities, making it an ideal destination for both casual swimmers and serious water enthusiasts. Crystal-clear waters during summer months reveal the lake's beautiful rocky underwater formations. Swimmers appreciate the expansive surface area, multiple access points, and generally calm conditions. The surrounding shrub-steppe ecosystem provides a distinctive Pacific Northwest experience without the crowded beaches of coastal alternatives. Tip 1: Arrive early on weekends to secure prime parking and avoid afternoon winds that can create rougher conditions. Tip 2: Explore different access points along the 27-mile length to find secluded swimming spots with minimal crowds.
About This Lake
Swimming Conditions
Banks Lake maintains excellent water clarity throughout the swimming season, with visibility often exceeding 30 feet in summer months. Water temperatures range from cool 55°F in early June to pleasant 72-75°F by July and August, making mid-summer the optimal swimming window. Average depth varies significantly by location, with many swimming areas ranging from 10-40 feet, though deep channels exceed 200 feet. The best swimming spots include Coulee City Park, Steamboat Rock State Park, and Sun Lakes-Dry Falls State Park, all offering designated swimming areas with gradual entries. The lake experiences minimal currents in main swimming areas due to its reservoir nature, though some flow occurs near dam structures. Safety considerations include respecting depth changes, wearing life jackets when boating, and being aware of occasional strong afternoon winds that can generate chop. The Washington State Parks system and local authorities maintain seasonal lifeguard presence at major recreational areas during peak summer months, though not all access points have lifeguard coverage.
Visitor Information
Banks Lake is easily accessible from Spokane, approximately 90 miles west, via Highway 2 toward Coulee City. Multiple day-use areas and state parks line the lake, including Sun Lakes-Dry Falls State Park and Steamboat Rock State Park, each offering parking facilities ranging from 50-200 vehicle spaces. Restroom facilities are available at most major access points, with some featuring vault toilets and others offering full amenities. Picnic areas with tables and shade structures are common throughout the lake. Nearby communities like Coulee City and Electric City provide basic accommodations, restaurants, and supply shops, though larger selections exist in Spokane. Best visitation occurs June through September when water temperatures are warmest and weather is most reliable. Spring and fall offer pleasant conditions but cooler water temperatures. Winter access is limited due to weather conditions and reduced services. Day-use fees apply at state park areas, typically $10 per vehicle, with camping available at nearby state parks for additional fees.
A Perfect Day Swimming at Banks Lake
Arrive early morning at Sun Lakes-Dry Falls State Park to secure premium parking and enjoy the freshest water conditions. Start with a refreshing swim in the crystal-clear waters, then explore the unique geological formations surrounding the lake. Pack a picnic lunch and enjoy waterfront dining at designated picnic areas. Spend afternoon hours alternating between swimming, kayaking, or simply relaxing on the sandy beach while enjoying panoramic views of the desert landscape and basalt cliffs. Visit nearby Dry Falls viewpoint for spectacular views of the ancient waterfall formations. As temperatures cool in late afternoon, consider a final sunset swim before heading home, capturing photographs of the dramatic lighting on the surrounding rock formations.
A Relaxing Washington Desert Escape at Banks Lake
Day 1
Friday evening, drive to Coulee City and settle into accommodations. Saturday morning, head directly to Steamboat Rock State Park for swimming and explore the unique rock formations. Enjoy a picnic lunch and afternoon beach time. In late afternoon, visit the historic Dry Falls Viewpoint for hiking and photography. Return to town for dinner at a local restaurant and evening relaxation.
Day 2
Sunday morning, return to Sun Lakes-Dry Falls State Park for another refreshing swim session. Explore different beach access points along the 27-mile lake to discover secluded swimming spots. Enjoy lunch at a picnic area and continue swimming if water temperature permits. Depart mid-afternoon for the 90-minute drive back to Spokane, refreshed by quality time on pristine desert waters.
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Is Banks Lake safe for swimming?
Yes, Banks Lake is generally safe for swimming with clear waters, mild currents, and seasonal lifeguard presence at major recreational areas. Always wear life jackets when boating, respect depth changes, and be aware of afternoon wind conditions that can create chop on the water's surface.
What is the best time to swim at Banks Lake?
The best swimming season is July and August when water temperatures reach 72-75°F. June and September offer pleasant conditions but slightly cooler water around 65°F. Spring and fall are less ideal due to colder temperatures, while winter access is limited.
Is there an entry fee at Banks Lake?
Yes, most developed access areas charge a $10 per vehicle day-use fee through Washington State Parks. Some informal access points may be free, but facilities and amenities are limited at those locations.
What facilities are available at Banks Lake?
Major access points offer parking, restrooms, picnic tables, and shade structures. Sun Lakes-Dry Falls State Park and Steamboat Rock State Park provide the most comprehensive facilities including camping, full restrooms, and day-use amenities.
Can you camp near Banks Lake?
Yes, Sun Lakes-Dry Falls State Park and Steamboat Rock State Park both offer camping facilities with various site options. Nearby communities like Coulee City provide additional accommodation options including hotels and vacation rentals.
📋 Sources & updates
Compiled from official park, state and lake-authority information.Swam at Banks Lake?
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