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, both traversing over 11,000 acres of diverse terrain across 16 unique natural communities. Runners will encounter demanding conditions, including soft, rolling sugar sand dunes known as the Dunes of Heaven and Hell, prairie wetlands, and other natural obstacles that test endurance and willpower. The event is well-organized with limited spots to ensure a quality experience, offering an adventurous and memorable race for trail enthusiasts. Visit the organization's website for the most recent information.

Race information

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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