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DTR Dunes Ultramarathon logo

DTR Dunes Ultramarathon

Sat, Apr 25, 2026, 7:00 AM EDT

Location
Hobe Sound, FL
16450 SE Federal Hwy, Jonathan Dickinson State Park, 33455
Type
ULTRA
Official registration

Sign up and verify details on the organizer’s official page.

At a glance

Conquer the unique and challenging "Dunes of Heaven" and "Dunes of Hell" in this 50K ultramarathon through diverse Florida state park landscapes.

  • Scenic
  • Quirky

Who it's for

  • Military & First Responders

Less ideal for: pure PR-chasing on a bare course

The DTR Dunes Ultramarathon invites runners to explore 11,000 acres of diverse Florida state park terrain. This 50K course challenges participants with a journey through Pine Flatwoods, River swamps, and bald cypress forests. The highlight is the infamous "Dunes of Heaven" and "Dunes of Hell," a unique "Sand scrub" ecosystem featuring endless rolling white sugar sand, which inspired the event's name and promises a truly memorable and demanding experience.

What to expect

  • • Traverse 11,000 acres of state park, encountering varied ecosystems.
  • • Navigate through Pine Flatwoods, River swamps, and bald cypress areas.
  • • Experience the demanding "Sand scrub" terrain with its rolling white sugar sand dunes.

Standout details

  • Infamous “Dunes of Heaven” and “Dunes of Hell”
  • 11,000 acres of diverse state park
  • Challenging "Sand scrub" ecosystem
  • Course includes an old military base

Auto-drafted from the public listing — confirm details on the official event page before signing up.

Distances & registration

2 options

Registration for all distances is through the official signup link above.

  • 13.1 Miles

    Sat, Apr 25, 7:15 AM EDT · From $169.54

    Opens Jan 29, 2026, 3:48 AM EST · Closes Apr 24, 2026, 7:59 PM EDT

  • 50K

    Sat, Apr 25, 7:00 AM EDT · From $239.50

    Opens Jan 29, 2026, 3:48 AM EST · Closes Apr 24, 2026, 7:59 PM EDT

Vibe Check

Push Potential

long distance + warm-day exposure

  • Warm season

Based on terrain, weather, and distance data.

The course

  • Flat
From the organizer

Traverse the 11,000 acres state park. Run through Pine Flatwoods, River swamps, bald cypress, old military base, to the infamous “Dunes of Heaven” and "Dunes of Hell”.

The race name " Dunes" is inspired by the toughest part of the course, an imperial eco-system called "Sand scrub" its endless rolling white sugar sand.

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