This secluded stretch of the Cowlitz River near Randle, Washington, is a quiet local swimming and camping spot in the forested foothills just southwest of Mount Rainier National Park. Tucked where an old Forest Service road bridge once crossed the river, it's the kind of off-the-radar place that's mostly known to locals — a wide, calm bend of clear mountain water framed by evergreen forest, perfect for a lazy summer day away from the crowds.

The appeal here is the river itself. At this bend the Cowlitz runs wide, deep, and slow, which makes for excellent swimming, floating, and paddling once the spring snowmelt has passed and the water has warmed and settled — generally by mid-to-late summer. There's plenty of open space along the banks to spread out, and the spot doubles as a relaxed place to camp, kayak, and hike, so it's easy to turn a swim into a full day or an overnight under the trees.

A couple of things to know. Because it's so secluded and lightly visited, this is a well-known clothing-optional spot for some, so set your expectations accordingly, especially if you're bringing the family. And while the slow water is inviting, any river demands respect: currents, depth, and submerged logs change from year to year and with the season, so check conditions, never assume it's as deep or calm as last time, and be especially cautious in spring and early summer when the river runs high, cold, and fast with snowmelt.

Timing matters. The best swimming is in the warm months from about July into September, after the runoff has dropped and the water has warmed; earlier in the season the river can be dangerously high and cold. Weekdays are quietest, and even on summer weekends this stretch rarely feels crowded — part of its enduring, hidden-gem appeal.

The setting adds to the appeal. This corner of Lewis County, along U.S. 12 near Randle, is the quiet gateway to Mount Rainier's less-visited south side and the vast Gifford Pinchot National Forest, so a swim here pairs naturally with a day of exploring waterfalls, forest roads, and mountain trails. The Cowlitz itself is a classic Cascade river, born of the glaciers and snowfields on Rainier, which is exactly why its water stays so clear and cold.

Come prepared and tread lightly: bring your own drinking water, sun protection, and everything you'll need, since there are no facilities out here, and pack out every bit of trash to keep this hidden riverside spot as clean and beautiful as you found it. Keep a close eye on children and weaker swimmers near the moving water. For those who value solitude over amenities, this quiet corner of the Cowlitz is a lovely, low-key slice of the Washington backcountry in the shadow of Mount Rainier.