Szlak jesieni is the autumn round of the Leśna Triada Biegowa and concludes the series for the year in Młociny Forest in Warsaw. It is a family-friendly forest running event offering a 5 km race for youth and adults, shorter children’s runs of 500 m and 1000 m, and a Nordic walking option for those seeking a calmer pace.
The race hub is the Ecological Education Center at ul. Papirusów 3/3A, housing the race office, workshops, and family activities. The day includes more than just running: an educational picnic, workshops, animations, games, and activities are prepared with partners such as Aktywna Warszawa, the Regional Directorate of Environmental Protection in Warsaw, and the Warsaw sanitary-epidemiological station.