Enjoy a fix of vitamin D at Satu Beach. Once you've worked on your tan, hang around and watch the sky change color as the sun fades away.
You'll have sightseeing choices galore when visiting Porto Seguro. Satu Beach is a good place to begin here, but there are lots of other interesting attractions to explore. Mirror Beach, Caraiva Beach, and Outeiro Beach are near the stretch of coastline and will fill in your day nicely.