Dunes 50K Ultra

Hobe Sound, United States • 25 Apr 2026

DTR Dunes Ultramarathon

The event takes place in Jonathan Dickinson State Park in Hobe Sound, Florida, on a property that covers about 11,000 acres. Courses run across a range of habitats and features inside the park.

Runners pass through pine flatwoods, river swamps and stands of bald cypress. Parts of the route cross an old military base and two named dune areas called Dunes of Heaven and Dunes of Hell. A notable section of the course goes through a sand scrub ecosystem made of rolling white sugar sand; this feature inspired the event name "Dunes."

Distances offered include:

  • 50 K Ultramarathon
  • Heavy Half Marathon : 13.1 Miles
  • Kids Run : 1 Mile

The description characterizes the terrain and landscape rather than race services or schedules. Information about entry, fees or exact race logistics is not included here. Visit the organization's website for the most recent information.

Race information

50 km
50k
14 mi
Heavy Half
Kids Free Fun Run
Visit the organization's website for the most recent information.
Trail runs nearby

Multi-distance trail event on the sugar sand dunes of Jupiter Ridge Natural Area. Options include two half marathons, a looped 5k progression, a 24 hour 80 mile elimination race and a 102 mile hundo.

A community-focused trail event in Riverbend Park, Jupiter, FL offering a 50K, a 12-hour loop challenge, and a shorter fun run on gravel trails along the Loxahatchee River with shirts, medals, and local trail support.

A single-day trail running event on September 19, 2026, offering two distance choices: 25K and 8K, with entries managed through an online registration platform.

Experience an adventure race or trail run through the scenic landscapes of Jonathan Dickinson State Park. Choose from multiple distances and disciplines including trekking, mountain biking, and paddling in this multi sport challenge.

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