Get a dose of vitamin D at Laginha Beach. After you've topped up your tan, stick around and watch the sky burst into different colors as the sun sets.
You're spoiled for sightseeing choice when spending time in Cape Verde. Laginha Beach is a good place to begin here, but there are plenty of other worthy attractions to discover. Mindelo Marina, Cultural Center of Mindelo, and Pont d'Agua are close to the stretch of coastline and will fill in your day nicely.