ColdPrimitive

Wanapum Lake

WA

About Wanapum Lake

Wanapum Lake offers a refreshing, primitive swimming hole nestled along a sandy beach in a quiet cove of the Columbia River. This cold spring delivers clear, crisp water framed by rugged stone cliffs and sagebrush, creating a raw and tranquil natural setting unique among Washington swimming holes.

Getting There

Reaching Wanapum Lake requires a moderate half-mile hike from a limited parking area within Sand Hollow Recreation Site. The trail winds through soft sand and high sagebrush, deterring most casual visitors and preserving the lake’s peaceful atmosphere. Alternatively, you can approach by boat along the Columbia River for easier access.

What to Expect

You’ll find a wide, shallow swimming area perfect for cooling off on a summer day. The water remains refreshingly cold, offering a crisp contrast to the warm sandy beach. Facilities are minimal, so expect a true wilderness experience with few visitors due to the hike and off-the-beaten-path location.

Tips for Visitors

Visit during summer for comfortable air temperatures, but be prepared for chilly water and bring plenty of water and snacks. Footwear suited for sandy trails and sun protection are recommended. There is no fee to enjoy this quiet swimming hole, and its unofficial clothing-optional status appeals to those seeking privacy and freedom in nature.

Last updated December 20, 2025
Wanapum Lake

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Access

Moderate Hike

30 min from parking

Parking

Limited

Fee

Free

Cell Service

Unknown

Crowds

Quiet

Best Season

Summer

Nearby Springs

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