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FREE · OUTDOORS

Dyke Marsh Wildlife Preserve

Name: Dyke Marsh Wildlife Preserve
Address: D.C., DC, US

485-acre tidal wetland on the Potomac with Haul Road Trail and Sunday guided bird walks; 4.6 stars

IS IT REALLY FREE?

Free. Admission is free per the official page. Confirm before you go.

📍 Mount Vernon

🕑 Year-round

Official source ↗ · Last checked 2026-11-07

HOW WE VERIFIED

We opened the official page on 2026-11-07, confirmed the name matched, and kept the listing only when the page was live. Hours and prices change — always confirm on the official source before you go. How we verify

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