Race. Train. Gear up.
Saturday, August 1, 2026 Marineland, FL, USA
Timed 50k

River to Sea 12 Hour Race

13 days to go
50km Distance
2.5 Grit Score
Entry Level Level
Vertical Intensity 0 D+/km
Flat Hilly Mtn

This course is relatively flat and fast. Ideal for PB attempts.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert
👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Course Intelligence

OPENFREE MAP (LIBRE)

Course Notes

Course is a 1 mile trail loop that is loaded with palm and oak trees in true old Florida hammock style. It is completely flat, shaded, nontechnical and absolutely gorgeous.