Several groups visited the penguin colonies on the east coast and the crater lake, but the dense vegetation cover of some parts limits access.
We presented a comprehensive model for the ancient crater lakes, which contains : sedimentation style, possible niche migration in and below a crater lake, and possible ' foods ' and their distribution.
It is one of three cones constructed within the 7x11mi km caldera, which also contains an elongated crater lake on its southwest side.
During a dawn flight, sample bottles were filled with crater lake water.
A small crater lake about 1015 m in diameter is found within the crater.
Some volcanic craters may fill either fully or partially with rain and/or melted snow, forming a crater lake.
Between major eruptions, a warm acidic crater lake forms, fed by melting snow.
A 600 m wide of crater lake is located at the summit.
