7 Surprising Facts About Bonito You Didn’t Know (But Will Want to See Up Close)

7 Things You Didn’t Know About Bonito (And Will Make You Want to See It Up Close)

Bonito is one of those destinations that truly touches your soul. Just hearing the name already brings to mind images of crystal-clear water flowing between your fingers. But what many people don’t know is that behind the famous postcards, there are stories and details that make this place one of the most fascinating in the world. Come with me and discover seven curiosities that will make you want to pack your bags right now.

1. Bonito Was Once Under the Sea

That’s right. Millions of years ago, the region where the caves and crystal-clear rivers of Bonito are now located was once the bottom of an ocean. The limestone rocks so common here are the result of marine sedimentation. You can even find marine fossils embedded in the walls of the caves.

2. The Water Is Crystal Clear Thanks to Limestone

That "natural aquarium" effect you see? It’s because the water that rises from underground aquifers passes through natural limestone filters. This process removes impurities and keeps the water clean, transparent, and full of life. But it only stays that way because nature here is respected.

3. Tours Have a Limited Number of Visitors

In Bonito, responsible tourism isn’t just a marketing slogan — it’s the rule. Each attraction has a daily visitor limit, controlled by a unique voucher system. This helps prevent environmental impact and ensures that every visitor has the same quality experience.

4. There’s a Lagoon Where No One Knows How Deep It Goes

The "Mysterious Lagoon" (Lagoa Misteriosa) is named for a good reason. Divers have reached depths of around 220 meters (over 720 feet)... and still haven’t found the bottom. It’s one of the most impressive dives in the world — and yes, you can go floating there too.

5. The Town Invests Heavily in Sustainability

Bonito has won multiple awards as Brazil’s most sustainable ecotourism destination. Sewage is properly treated, waste is sorted, and the locals understand that taking care of nature is also taking care of their own economy.

6. Bonito Has Underwater Sculptures

At Nascente Azul, besides floating among colorful fish, you’ll find an actual "underwater museum" with artistic sculptures at the bottom of the water. It’s surreal to swim alongside a sculpted anaconda or watch fish weave between stone faces.

7. The Guides Are Storytellers

More than just pointing out animals or explaining the route, the local guides share tales, fishermen’s stories, indigenous legends, and even regional jokes. They are the heart and soul of the tours — and many end up becoming friends after the trip.