The Hopewell Rocks are rock formations that were formed by tidal erosion. After the last ice age when all the glaciers had melted, some water filtered through cracks in the rocks. This caused the rocks to separate from the rest of the cliff. At the same time, there were large volumes of water that flooded in the bay twice a day. This flooding and the water filtering through rocks have eroded the rocks into their interesting shape. Unfortunately, in 2016, Elephant Rock, one of the many rocks, had collapsed, with approximately 200 tonnes of rock falling to the ground. Today, it is still a main site for tourists to go see and it’s recommended that a visit is as long as a full tidal cycle so you can see the best of the rocks.