Diamond head crater is a tuff cone created by a single explosian of steam and ash 300000 years ago. It is made of ash and fine particles that cemented into…
Western explorers mistook calcite crystals for diamonds in the 18th century, hence the name of the crater.
Crater floor.
Honolulu and Waikiki.
Coral reefs are now protecting the crater from the assaults of the ocean.
The crater was used for military purposes after 1908. Batteries and a fire control station used to coordinate artillery fire from the batteries.
Myna, introduced from India in 1865.
Java sparrow, introduced from Bali and Java.
