Rio Perdido: sinkhole, resurgence and river decks
ICMBio lists 1.25 km between the sinkhole and resurgence, and 3.5 km from the sinkhole to the island deck, passing seven decks. The source does not say these include the return. Choose the extent with your guide rather than treating 3.5 km as a certified loop. Stop to understand the river system as well as photograph it.
Editorial allowance: a flexible half-day at the site within a full outing day; obtain the actual walking and return plan.










