McLean is prized for its lush, wooded landscapes and scenic preservation areas along the Potomac River.
* **Scott's Run Nature Preserve:** One of the rarest biological ecosystems in the Mid-Atlantic, featuring steep trails, spring wildflowers, and a beautiful waterfall that cascades into the Potomac. * **Turkey Run Park:** Operated by the National Park Service, this park offers miles of forested hiking trails and serene river views. * **Fort Marcy Park:** A historic Civil War earthwork fort site that offers a quiet wooded loop for walkers and history buffs. * **Lewinsville Park:** A popular community park featuring athletic fields, community gardens, and space for annual town events.