My friends and I have been to Costa Rica two times now, and have done the same Canopy tour in Montezuma through Sun TRails twice. The instructors are professional, speak english very well, and showed us the jungle of Montezuma with professional equipment and a fun atmosphere. Towards the end of the canopy tour there is a very large waterfal that the guides walk you down to for swimming. There are MANY stairs up and down. If you have trouble walking up lots of flights of stairs you may consider staying up above and waiting for the rest of the group to come back. There are something like 160 steps to the waterfall. It is amazing once you arrive and very refeshing. Wear water shoes or tennis shoes as the rocks are slippery! Take a camera or water camera would be even better! Enjoy- and be sure to leave a tip for the guides if you had fun.