Lake to Ocean 100K
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Event overview
The Lake to Ocean 100K is a point-to-point ultramarathon held in Port Mayaka, Florida on May 30, 2026. The race distance is 100K and the course runs from the NENA trailhead in Port Mayaka to Hobe Sound beach. Registration for the event is currently full and there is no waitlist; registration closed on May 25.
Course and logistics
The course is mostly single-track remote trail that passes through multiple ecosystems, including ancient sand dunes with scrub oak and sand pine, pine flatwoods, palmetto, palm and oak hammocks, cypress domes, and wet prairies. Wildlife on or near the trail includes deer, alligators, otters, owls, snakes, bobcats, coyotes and various Florida wading birds. The race has a strict 18 hour time limit. A crew is required for each runner; crew access is provided at mile points 15, 22, 31, 37 and 48. Organizers state they will attempt to recruit a crew for runners who fly in and do not have one. Visit the organization's website for the most recent information.
