Cave Rock, Sumner.

A digger with a group of people on a mound of sand as the tide ...

Rhys Kempen atop rubbish bin as the tide washes in near the base ...

Council workers building a rockwall to prevent further erosion ...

View of the Avon-Heathcote estuary from Sumner, showing Sumner ...

An aerial view of Sumner beaches with dangers and patrol areas ...