If you have been living under a rock, or 26 feet of limestone as it may be, and you haven’t heard – there is a massive new underground bike park in Louisville, Ky. In addition to hosting the 2015 edition of NAHBS this weekend, riders from all over are starting to make the trip to Kentucky to see what the Mega Cavern is all about. That includes Canyon Bicycle team member Rob J. Heran who headed down to Louisville with photographer Sebastian Doerk to take some incredible photos and create the rather entertaining edit after the jump…