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Dunes 50K Ultra

Hobe Sound, United States • 25 Apr 2026

The Dunes 50K Ultra & Heavy Half is a challenging trail running event held at Jonathan Dickinson State Park in Hobe Sound, Florida. The race features two main distances: a 50K ultra and a 14.4-mile Heavy Half marathon. Participants traverse over 11,000 acres of diverse terrain, including 16 unique natural communities such as prairie wetlands and the distinctive "Dunes of Heaven and Hell." The course is known for its soft, rolling sugar sand dunes that test runners' endurance and willpower. The event is well-organized with limited spots to ensure a quality experience, offering an adventurous and demanding run through scenic and rugged landscapes. Visit the organization's website for the most recent information.

United States Florida Hobe Sound

Race information

Website Registration
50 km
50k
14 mi
Heavy Half (14.4 Miles)
Kids Free Fun Run
Visit the organization's website for the most recent information.
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