Caldy Hill is an area of heath and woodland on a sandstone outcrop on the Wirral Peninsula.

From here there are fine views over the estuary of the River Dee to Hilbre Island and the Irish Sea.

More distant views range to Snowdonia in the west and Blackpool and the Pennines in the east, more rarely as far as the Lake District to the north, and extremely rarely to the Isle of Man in the north-west.

Consequently, the Trustees of the Liverpool Docks erected the Mariners' Beacon in 1841.

Calday Grange Grammar School is situated on Caldy Hill.