As they flew above the mountain range in the middle of the island, Xia ping 'an discovered that there was another place in the middle of the mountain range. There was a Lake there, but it was not frozen.
Looking down from the sky, Zhang tie found the unfrozen lake water was pretty evident. It was covered with white snow. However, the lake water was green and steaming.
Perhaps to the warship bird, this was the most peculiar place on the island, so it had brought Xia Pingan along.
this is a dormant volcano on the island.
When Xia Pingan saw the terrain around the lake clearly, he immediately understood. Because this was a dormant volcano, there were rich geothermal resources and the lake water was not frozen.
