Who likes to experience some exciting trips between kitesurfing is right here as well:

Explore the mangrove forests along the Rio Jaguaribe by boat.

Take a walk along the "Broadway" at the well-known party location Canoa Quebrada and maybe dare a tandem paragliding flight along the cliffs. 

Hike through the sandstone canyon of Morro Branco down from the lighthouse all the way to the beach and then later make a trip with the beach buggy.