It’s the most north island of the archipel. The main cities there are Porto Novo and Povo Sao. The views from the mountains are immensely beautiful.
If you’re in Porto Novo and it’s clear weather, you can even see San Vicente. There’s a boatline between that island and Porto Novo.
You can also visit breweries, where they brew the national drink Grogue.
Tipically is that one side of the island is pretty dry, but the other side is very green. In valleys it’s always green, because the water comes down from the mountains and stays down, in the valleys.
When you drive in the mountains it can occur that there’s a cloud in between, and it’s very special to drive through it.