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A good base is the area around the waterfall. There’s a trail to a viewpoint starting there. As of 2015, OpenStreetMap has only very basic map coverage of the trails.
The Orquideario is the world's second-biggest orchid garden, with 700 species. It’s well kept and great to wander around or sit down enjoying the environment. You can also hike up the road behind the Orquideario to a ruined mansion and a view of the valley.
Waterfall
The Cascadas El Salto is a beautiful 35-meter waterfall. From the parking lot, you cross the river and a paved trail leads down to the top of the waterfall and then further down to the base, where you can also swim. In the dry season there’s not a lot of water coming down, but the trail and surroundings are pretty nonetheless. There’s also a state-run restaurant at the entrance.