The Crystal Catacombs are located deep underground below the Jaguar Temple. You access them by falling off one of the plateaus inside the temple. While there, you can collect pink crystal fragments to make crystals that you can sell to Kan the Geomancer.
NOTE: They have been replaced by the Gold Crystals
Chief Pathfinder Burrows Edit
He also let you become a Dizzywood Pathfinder after you fulfilled certain requirements. He will ask a player a series of 12 questions. When all answers are answered correctly you become an official Dizzywood Pathfinder. There is one catch, a player is only allowed to answer his questions once a day.
Dangerous Mineshaft Edit
In the back of the Crystal Catacombs, next to Chief Pathfinder Burrows is a boarded up Dangerous Mineshaft. When you click on it, you get a pop up message that says, A dangerous looking mineshaft! You could squeeze through the wooden boards, but it's much to dark to see your way.