You can hike Agua Volcano on your own by taking a bus or a shuttle from Antigua, which will lead you to the trailhead of the volcano. Your day trip can also be arranged through local excursion companies.

Lanquin Caves and Semuc Champey
Lanquin Caves and Semuc Champey are situated 9 km outside of the small Mayan village of Lanquin. From Lanquin town,