Canoe to the remote Barton Creek Cave on a full-day trip from San Ignacio with an optional zipline adventure, butterfly farm visit or jungle hike to Big Rock Falls. Glide into a hidden cave entrance surrounded by water, and explore a deep series of passages that were sacred to the ancient Maya. Use your headlight to illuminate crystal formations and dangling stalactites, and learn about the cave’s ceremonial history. Slip into the water for a cool swim, then finish your day with an adventure of your choice.