Eternal flame inside a waterfall
One of the strangest and most striking natural phenomena you will have the opportunity to watch at Chestnut Ridge Park in New York.
Inside a waterfall a small flame melts, never extinguishing. This unique phenomenon is due to the natural gas in the slate layers above which the waterfall was created.
Most of the gas dissolves in the air, but there is always enough left inside the rock keeping the flame always on. The flame reaches 2 to 8 cm and is particularly impressive during winter, when the snow covers everything except of course.