veleiro terra firme rio provides fun filled sailing trips lasting approimately six hours - leaving daily from the marina da gloria the trips can accomodate up to seven people and allow plenty of time to swim and cruise around rio's isalnds. the company provides masks, fins and snorkels  and has a great reputation for making the snorkelling as enjoyable as possible.

for more information on sailing tours available around rio de janeiro, which provide snorkeling, individuals can cruise through the sailing section(link)  - many tours have the option of visiting ilhas cagarras (link) which is located 5 km from ipanema beach.