The Zone's main geographic feature here is an ancient lave flow that arrived at the coast after travelling about 25 km from its release point. 

On its arrival inside flows pushed into the cooling waters forming "pillow" formations we see today

Studies
We learn how this material could travel so far, we explore the various "rivers' and see how they have shaped the land and how they have been since buried by nature. 

Geology
"Loess" and alluvial deposits of greywacke from the distant Alps cover the rare ancient basalts forming a coastal erosion protection barrier for the settlement of Timaru. 

Uses for settlement
Other uses for the settlement include a base for building the harbour, excellent convenient building and road building material. 

See also:-  Volcanoes NZ