The new Nature Trail is the second thematically elaborated excursion route in Kal basin located Balaton Uplands National Park. Like the former Theodora Nature Trail it serves the aims to inform tourists about the natural values of the region and call the attention to the importance of protection. the new Nature Trail shows precious geological findings focused on the stone. Walking on the hiking trails we can detect the remains of dead volcanoes, climb the Kereki hillock and admire the stone sea at Szentbékalla. The route is about 8 km long includes 15 stops with informationpanels. Both Nature Trails are connected by a so called "Time Trail" of 1,1 km length. This part of the route introduces interesting but less known events in the 6,6 thousand million year long history of the Earth. The route of the path starts at the foot of Kereki hillock and returns there, too.