Have a look at some of the challenges and start planing your trips!
Flowers, bees, beautiful Czech nature.
Maze full of flowers.
Animal island in the middle of a city.
Where does the water come from?
Stalagmites and stalactites, which one is which?
Dig deep!
A gate to another world
Rock on Little rock!
Ruins of old times.
How deep is your Erasmus?
