The north eastern part of Hong Kong features some good examples of coast line erosion; notably the Geopark.
These pictures were not taken at the Geopark, but close to it.
The photos were taken some six to seven years back, while taking a boat trip part of which hugged close to the coast line.
Sea cliffs, sea caves and columnar joint patterns are commonly found along the coast line.
Hope to get onto a boat trip one day soon!