Trip report
Feb 16, 2018 — Starting from the visitor center, head up a ridge above Cottonwood Lake, the first of the sinkholes, also known as cenotes. Continue along the rim of the cenotes, off-trail, until the last pair, then head down to the Park Service Road. From here, a canyon should be visible on the left, Shadow Canyon. Sidenote: I asked a ranger about this canyon since it wasn't named anywhere on maps, and he said aparently Billy the Kid hung out in there? Yay history! Anyway, I decided to go up the north fork, and then back through the south fork. You should be able to see a sign for the Bluff Trail, a super boring interpretive trail that leads to Lea Lake.