A large stone thrown in the river by a giant who was working on the farms above according to Welsh Folklore.
This is a cache with swaps and a brief history of the stone. You can find it along the footpath which is one of the routes of the coastal path close to Penmorfa Chapel. You will need to cross the wall via the style from the road just down from the chapel on your right. Follow the footpath down. You will need to be careful at the location around the cache as it can sometimes be slippery.
You can bring something to swap, before you continue along the footpath to Penbryn beach.