Volcano

Volcanoes are natural ruptures in the earths surface, which allows magma, volcanic ash and gases to escape from below the surface.

Volcanoes contains unlimited amounts of Lava.

Usages
As volcanoes contains unlimited sources of lava, players will often use them for walls for e.g. controlling water or preventing tsunamis from reaching villages.

Dangers
Because of volcanoes unlimited sources of lava, players have to stay alert and protect vegetation against getting in contact with the lava which can cause fires that can destroy villages and kill natives.

Like tsunamis, every time a counter hits zero, volcanoes will erupt causing much more lava spawning.