The Acaiá Grotto Tour invites you to discover one of the most surprising and unique landscapes on Ilha Grande. The tour is done by taxi boat , sailing through crystal-clear waters to reach this impressive natural cave, where the rock formations and the reflections of light on the water create a unique spectacle.
During the tour, you can enjoy beautiful landscapes, stops for swimming and moments of contemplation, with special highlight for the visit to the Acaiá Grotto, where the intense blue color of the sea inside the cave offers a truly unforgettable visual experience.
An ideal excursion for those looking to discover different places, explore the lesser-known corners of Ilha Grande and live an authentic experience in direct contact with nature.
The tour begins with boarding at Abraão Beach on Ilha Grande, aboard a speedboat that will take us to discover some of the island's most stunning natural landscapes. During the trip, we'll visit idyllic beaches, natural pools, and crystal-clear waters, with special stops for swimming, snorkeling, and enjoying the beauty of nature.
Our first stop will be at the Acaiá Grotto , one of Ilha Grande's most impressive natural phenomena. Located approximately 8 meters below sea level, this cave hides an extraordinary spectacle: the water takes on an intense fluorescent turquoise hue thanks to the sunlight reflected inside. In the darkness, luminous flashes resembling tiny gemstones can be seen, creating a unique visual experience. The cave is approximately 30 meters wide and has an average height of just 1 meter. Access is by land, through a narrow opening in the rock, with a section that requires crouching and, at times, crawling. Because the access is challenging and dark, it is important to have a flashlight and be aware that the visit requires a certain level of physical agility. The path to the entrance is relatively easy, with small ascents and descents through the vegetation. Estimated time: 1 hour.
We'll continue to the famous Lagoa Azul , one of the most popular natural pools on Ilha Grande. Its predominantly blue, crystal-clear waters create the perfect setting for swimming, floating, and snorkeling. It's an ideal spot to observe large schools of small fish swimming around visitors or simply relax and enjoy this idyllic landscape. Time spent: 1 hour.
The next stop will be Lagoa Verde , a charming spot with shallow, calm waters and beautiful shades of green, located on the northwest coast of Ilha Grande, near Enseada de Araçatiba. Its crystal-clear waters are ideal for snorkeling and exploring marine life. With a bit of luck, you might spot sea turtles and starfish, making this stop an even more special experience for nature lovers. Time spent: 1 hour.
To conclude our tour, we'll visit Grumixama , a charming little beach that hides a true natural haven. Less frequented than other destinations on the island, it offers a tranquil and almost exclusive atmosphere, with serene waters and abundant marine life. Here you can relax, enjoy the sound of the sea, watch the trees sway in the breeze, and completely disconnect amidst a privileged natural environment. Time spent: 40 minutes.
A journey full of discoveries, amazing landscapes and crystal clear waters, ideal for those who want to discover some of the most special natural treasures of Ilha Grande.
Shared service by taxi boat
Reservamos la Gruta de Acaia en nuestra luna de miel: fue un golazo. La cueva es impresionante, el paseo en barco hermoso y el guía nos sacó fotos sin pedirle (milagro para dos recién casados). La relación precio-calidad nos pareció redonda. Al reservar, Camila respondió enseguida por WhatsApp y avisó qué llevar, evitando llegar con ojotas. Todo salió puntual y con mucha onda.
Booking this Acaia Grotto tour was easy, and the price felt fair for what was included. Our van left the meeting point in Rio at 6:10 a.m., exactly on schedule, with a friendly driver who handled the road to the boat connection smoothly. The short wait at the pier was well organized, and we reached Ilha Grande without confusion. The grotto and swim stop were fantastic, making this a terrific summer day.
Na nossa primeira viagem internacional, a Gruta de Açaí virou um dos melhores achados de Ilha Grande. O guia, Rafael, conhecia cada curva da trilha e explicou por que a água fica mais azul perto da entrada quando o sol bate; parecia ter um mapa na cabeça. Também contou histórias da comunidade sem transformar o passeio em aula chata. O grupo foi pequeno, o ritmo tranquilo e ainda sobrou tempo para um banho delicioso. Pelo preço, entregou muito mais do que esperávamos. Voltamos cansados, felizes e com fotos lindas — até meu namorado, que odeia trilha, pediu bis!
Mit unseren kleinen Kindern lief der Ausflug zur Acaia-Grotte erstaunlich entspannt ab. Der Transfer vom Hotel zum Anleger kam pünktlich, und auch das Boot legte ohne Wartezeit ab. Unser Guide Rafael kannte die Insel bestens und erklärte unterwegs sogar, warum die Felswand am Eingang bei Ebbe anders aussieht. In der Grotte achtete er aufmerksam auf die Kinder. Rückfahrt und Abholung waren genauso zuverlässig – ein schöner Sommertag ohne organisatorischen Stress.
On a fêté notre anniversaire d’amitié avec la sortie vers la Grotte d’Açaí : une belle découverte. Notre guide Lucas connaissait chaque recoin et expliquait comment la roche volcanique s’était creusée sans jamais nous presser. Il nous a montré un petit bassin naturel près de l’entrée, où l’eau reflétait les palmiers. Le sentier forestier, les vues sur la baie d’Aventureiro et les collines de Mata Atlântica étaient superbes. On a même partagé des fruits frais à l’ombre. Balade conviviale, bien expliquée et très dépaysante.
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