The first weekend of December 2013, Troop 500 visited Eagle Cave in Wisconsin, which is the world’s largest onyx cave! With well over 3,000 feet of passage, there are four main walking levels and beneath are four more levels of subterranean tunnels for exploring. If you and your Troop or Venturing Crew are interested in spelunking, here is the website for more information: http://www.eaglecave.net/
