Centro's prettiest beaches are best reached by bike (Ubatuba is well equipped with bike lanes) and the scenic bay has become a popular spot for stand-up paddling (SUP). The real trick, though, is to get to the remote beaches and picturesque islands outside the city. The tourist office can also offer information about hikes and guided visits to the adjacent state park (Parque Estadual da Serra do Mar), with good hiking trails into the thickly forested coastal range.
Ubatuba is also a major birdwatching hot spot, especially in October.
Boat trips leave from Itaguá (3km southeast of Centro) for the most popular island trip, Ilha Anchieta (around R$70 plus R$14 island tax, three to four hours). For Ilha das Couves, Ubatuba's Eden, boats depart from Picinguaba beach (per person R$40, 12 mins). Boats are also available to Ilha do Prumirim from Praia do Félix and Praia do Prumirim (per person R$25).