This beautiful, lushly vegetated canyon abutting the tiny Maya settlement of the same name is about 6km east of El Estor. Pay your Q10 entry fee, and for around Q20 per person, villagers will paddle you 15 minutes up the Río Sauce through the canyon, drop you at a small beach – where you can swim and, if you like, scramble up the rocks – and wait or return for you at an agreed time.
Río Dulce–bound buses from El Estor will drop you at El Boquerón (Q10, 15 minutes), as will El Estor–bound buses from Río Dulce.