Blue trail is the 13.0km trail race at Trail na Mljetu 2025 (Nacionalni park Mljet, Croatia). The race starts on May 3, 2025.
Run the climb at race pace, build your speed on the downhill, and go all out at the finish.
The course climbs 527m+. With 41m/km of climbing, this is a rolling, mostly runnable course. By gradient, 21% of the distance is uphill, 38% downhill and 41% flat. The longest climb runs 1.9km at an average 13.0% grade (249m of vertical). The longest descent runs 4.9km at an average 6.6% grade (324m of vertical). The steepest climb averages 19.2% over 0.9km. The steepest descent drops at 23.3% over 0.3km. Surface: 47% trail, 31% road, and 19% technical.
The course also passes close to Debela glavica (123m).
Poles bring little benefit here: only about 0.9km of pole-friendly terrain.
There is too little runnable descent to damage the quads: plan the race around climbing and fuelling.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Blue trail.
Other distances of Trail na Mljetu 2025Mljet trail marathon (orange) (42.0km)·Red trail (23.4km)
Other editions of Blue trail2026
Official websitethegreatrefresh.com/mljet-trail