A fine warning sign. In case you can't read it, here's the text:
Danger!
Avoid fumes
Lava entering the ocean creates a toxic cloud that contains hydrochloric acid, superheated steam, and volcanic glass. These substances will irritate your eyes, skin, and lungs. Leave area at once if acid mist clouds are present.
Do not approach areas where lava enters the ocean
New lava may appear solid, but often extends into the ocean without a stable base. It may collapse at any time without warning! Steam explosions hurl hot lava rocks inland. Stay away -- don't risk your life!
Beware of getting trapped by lava
Never enter areas where molten lava may cut off your escape route. Keep a safe distance from fresh lava, which is about 2000 degrees F. Be aware, stay alert, and use caution at all times.
