This is a really great tour, especially if you are looking to add a little adventure to you trip into the caverns. Although the trail is pretty strenuous, most people should be able to complete it (at least physically). The guides and other participants did a very good job in helping others out, good communication is key. The cost is fairly inexpensive, $20 per person, but the experiences you gain is well worth it! Since the tour is only offered on Saturdays, I would recommend you make reservations early.
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