The Great Lakes have another claim to greatness: magnificent ice caves recently made accessible by a frozen Lake Superior. The caves, located off the Apostle Islands, were last reachable by tourists in 2009.
(image credit: Northstarnerd.org)
read more and see additional images at FOX: http://www.foxnews.com/weather/2014/02/12/thousands-making-trip-to-see-ice-caves-made-accessible-by-frozen-lake-superior/
