Volcano oozes lava into the ocean. Lava from the Kilauea volcano in Hawaii Volcanoes National Park pours into the Pacific Ocean. The lava is entering the Pacific from several points along the Wilipe'a delta.
Arenal Volcano, Costa Rica, viewed from the northwest. Volcan Arenal is the youngest—under years old—and most active of all the volcanic mountains in Costa Rica. Presumed extinct until a 1968 earthquake re-awakened it, the mountain now produces regu