Coconaut Pomerania Ultra-Trail 42 km (PT43) is the most popular distance at the annual Coconaut Pomerania Ultra-Trail, held on October 17, 2026, starting from Barłomino in Pomeranian Voivodeship, Poland. The course covers 42 km (UTMB-measured 42.5 km) with 1,300 m of gain (31 m/km) across Kashubian moraine hills and Pomeranian forest trails — the highest ridges of the Łeba River valley, visiting Jelenia Góra, Narożna Góra, and Paraszyńskie Górki with views over Lubowidzkie Lake.
Described as the event's second hardest distance after the 100km, the PT43 draws more finishers than either the 65km or 100km — 102 recorded in 2024. UTMB Index 50K category. Entry costs €0.96/km (225 PLN / €52 until Oct 13, 2026). Gdańsk Airport (GDN) is 36 minutes away. Not sold out. Founded 2019 / now in its eighth edition. Suits trail runners seeking a challenging but accessible autumn ultra in an off-the-beaten-path coastal Poland setting.