Dunes 50K Ultra
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Dunes 50K Ultra & Heavy Half
The event is a set of trail races held at Jonathan Dickinson State Park in Hobe Sound, Florida. The courses cross more than 11,000 acres and pass through 16 distinct natural communities within the park.
The routes include varied natural terrain such as prairie wetlands and areas described as the Dunes of Heaven and Hell. Sections of the course run over soft, rolling sugar sand dunes that affect footing and pace.
Distances offered:
- 50K
- Heavy Half (listed as 13.1 and noted elsewhere as 14.4 miles)
- Kids free fun run
Entries for the 50K and the Heavy Half are limited. Registration opens August 2, 2026. The event policy states no refunds and no transfers. Additional event elements such as the schedule, runner swag, and other logistics are noted in the event materials but are not detailed here. Visit the organization's website for the most recent information.
