Trindade is a pleasant town in the island’s interior, and you can visit the waterfall Cascadas de So Nicolau nearby. You can also hike up Pico So Tom, the island’s highest point at 2024m (6639ft). There are buses couple of hours from So Tom, a trip of about 10km (6mi), or you can hitch.
The town is compact, and walking is the best way to get around. Praia Meio is a 5-10 min walk; the more tranquil Cachadaço beach is another 10-15 min past that, through a well marked path (the entry can be hard to spot, but once on the trail it is easy). At the end of Cachadaço, another trail will take you to the natural swimming pool. 35 min from town to the pool.
Nature. A great variety of singing insects, beautiful morpho butterflies, wonderful fish species and some small mammals can be spotted in the forested hills.