Dunes 50K Ultra

Name: Dunes 50K Ultra
Start: 2026-04-25
End: 2026-04-25
Location: Hobe Sound

APR

2026

Tackle soft sugar sand dunes and prairie wetlands at Jonathan Dickinson State Park in Hobe Sound with the Dunes 50K Ultra and Heavy Half. Options include the 50K, Heavy Half and a kids fun run, so sign up early as spots are limited.

Sat 25 Apr 2026

Hobe Sound, Florida

Website Registration

50 kilometers 13 miles

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Event overview

The Dunes 50K Ultra & Heavy Half is scheduled for April 25, 2026 in Hobe Sound, FL at Jonathan Dickinson State Park. The event lists the following distances:

50K
13.1 (half distance)
Kids free fun run

The event location is given as 16450 S.E. Federal Highway. Registration is listed as closing on April 25, 2026. The organizer notes that spots for the 50K and Heavy Half are limited.

Course and rules

The courses run through Jonathan Dickinson State Park across more than 11,000 acres and 16 natural communities. The route includes prairie wetlands and large sugar sand dunes described as soft and rolling. The event notice states there are no refunds and no transfers; vouchers will be honored until March 27, 2025. Visit the organization's website for the most recent information.

50 km

50k

13 mi

13.1

Kids Free Fun Run