You'll enjoy the beaches and parks in Praia do Rosa. You might want to make time for a stop at Rose Beach or Praia de Ibiraquera.
If you're spending some time in Itapiruba, Praia de Itapirubá Norte and Praia de Itapirubá Sul are top sights worth seeing.
You might consider checking out Ibiraquera Lake while you're exploring Penha and the larger Imbituba area.
Travellers like the museums in Imbituba Centro, and Praia da Vila is a top attraction you might want to visit.
Ribanceira might not have many top sights, but Praia da Vila and Ribanceira Beach are two attractions nearby that you can check out.