Community groups

Royal­­ Geological Society of SA

Field Geology Club of SA

City of Marion

Coastal Walking Trail

Hallett Cove Conservation Park

Marino Conservation Park

South Australian Department of Environment and Water:

Friends of Parks Inc.

National Parks and Wildlife Services South Australia

Other links

The Wikipedia entry for Hallett Cove,
https://en.wikipedia.org/wiki/Hallett_Cove,_South_Australia