"Walruses" Brave Cold Waters In Warsaw

cold water swimming Vistula River Warsaw Poland winter swim outdoor swimming polar plunge river swimming winter sports cold weather active lifestyle health and wellness endurance freezing water people swimming winter challenge urban river water sport community event physical fitness cold exposure Walrus Morsy water river cold autumn winter season weather climate fall health fitness cold water swim Vistula river Warsaw Poland 23 November 2024 Walruses weekly event hundreds of participants Sunday gathering cold water dip swimming community event Jaap Arriens NurPhoto outdoor activity winter swimming cold exposure health benefits river swim group activity social event endurance water sports recreational activity tradition cold therapy camaraderie fitness resilience mental toughness seasonal event aquatic activity.