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Fourth Slide is a whitewater put-in located in Bethesda along the Potomac River in Montgomery County, Maryland. This access point serves paddlers looking to launch into the Potomac's whitewater sections. The site is positioned to provide access to river segments suitable for kayakers and canoeists seeking whitewater paddling experiences. Given its location near the Bethesda area, the site is relatively accessible from the Washington DC metropolitan region.