Massive Kilauea Cauldra
The caldera is approximately 4 mi long and 2.5 mi wide. Within the cauldra lies the active Halema'uma'u Crater and with in that lies the vent or lava lake, approximately .25 mi wide. This lake rises and falls about 30' depending on activity. This photo plus the next 6, are taken from the observation centre almost 2 miles away.