unexplained-events: Scary Deep Holes Around the World 1) Dean’s Blue Hole in Long Island, Bahamas -
unexplained-events: Scary Deep Holes Around the World 1) Dean’s Blue Hole in Long Island, Bahamas - 660 feet deep 2) Mount Baldy Sink Hole in Indiana - 11 feet deep 3) Ice Cube Neutrino Observatory Hole - 1.5 miles deep 4) Giant Blue Hole in Belize - 407 feet deep 5) Glory Hole at the Monticello Dam in California - 304 feet deep 6) 2010 Guatemala City Sinkhole - 100 feet deep -- source link