Toga Bay

Toga Bay was formed when the sea flowed into the crater of a monogenetic volcano (a volcano formed by a single eruption). The eruption that formed this volcano occurred about 40 million years ago. The hills around the crater, formed by volcanic material such as pumice, are called a tuff ring. The difference between this and the maars is that although they were also formed by a single eruption, they do not have this hilly ring.

West Coast