Kokořínské Roklinky is a 28 km cross-country race held in Czechia's Kokořínsko area, starting and based at the Mšeno swimming pool. TJ Sokol Mšeno organizes it annually on the last Sunday in August, as part of the larger Mšenská padesátka tourist event. It was incorporated into the local cross-country series as its longest and most challenging race, indicating it is not a simple trail run with a race number.
The route largely follows the green-marked trail, guiding participants through narrow ravines, deep gullies, over exposed roots, along goat paths, and across varied terrain. Seven climbs are featured, with minimal flat sections and descents designed to challenge tired legs rather than offer rest. Aid stations are located at 7.3 km, 15.4 km, 20 km, and 26 km, requiring careful attention to hydration. Both men and women compete in multiple age categories, and family members can participate in walking or cycling routes within the Mšenská padesátka on the same day.