There are many companies offering boat trips to the islands. It all depends on what you are looking for. You may want to catch a large boat with lots of Brazilians where lunch is included. They can have a fun atmosphere especially if you add Caipirinha to the mix. The majority of boats go from the “Cais” (pier) the far side of Paraty old town. From Jabaquara beach you can also get private boats to the islands. These are smaller boats that go to the various top island and tropical beach destinations..and if you are looking for more seclusion seek out those spots. In peak season for Brazilians (Dec/Jan/Feb) these top places to stop can get a little crowded but come April to October when there are less people means that things won’t be crowded. https://escunaestreladamanha.com.br/ is one option. https://paratybooking.com.br/atividade/passeio-de-escuna-com-almoco-incluso-10h30/ comes with lunch. https://www.paratyexplorer.com.br/boat-tours-in-paraty : here you get to curate your own trip away from the crowds and with Stand Up Paddle boards on board if you wish. Sip an ice cold caipirinha on top of your private boat! Quote rioparaty.com. These are some options but let’s have a conversation about what’s best for you and we can arrange....the private hire boats from Jabaquara beach don’t have websites but we have images to show.