The Forrásvíz Természetbarát Egyesület and Keszthely's Asbóth Sándor School organize their traditional "Lepke" (Butterfly) long-distance hikes in the Keszthely Hills for the 28th time this March.

Participants can complete 15, 25 or 40 km, and those who collect all necessary check points, receive a certificate and a badge. There will be refreshment stations, food and drink purchasing options and drinkable springs.