The Kammarstenen on the farm Ånhammars mark, in Gryts parish, is a popular destination for families with children. Kammarsten is a huge moving block.
As an extra bonus, when you're still at the Kammarstenen (and the children want to keep playing), you can go down to the Järnaån, which flows south of the moving block. On the road bridge over the river, on sunny days you can see a multitude of wonderfully blue-sparkling maidenhairs. There are Blue damselflies with completely blue wings and Blue-banded damselflies which have transparent wings except for a jewel-sparkling blue wing patch.