Lagoa Verde: Ilha Grande's Emerald Snorkel Spot

Lagoa Verde is a shallow, sheltered natural pool tucked between Ilha Grande's northwest coast and the tiny Ilha da Longa, roughly a 60-minute boat ride from Vila do Abraão. The water here is calm, rarely more than a few meters deep, and carries a distinct green tint from the algae and coral below — hence the name. Most visitors see it as a 45–60 minute snorkel stop on a half-island (meia volta) boat tour that also calls at Lagoa Azul and a couple of beaches.

The spot's official geographic name is Ilha da Longa, not Lagoa Verde. That distinction matters if you're trying to find it on a map or book a private charter: tour operators sell it as "Lagoa Verde," but locals and fishermen know the anchorage as Longa. You cannot reach it by road. The only access is by boat, or on foot via the T6 trail from Praia da Longa — a route that takes well over an hour and is rarely worth the effort when the boat ride is so short.

Getting There and How the Tour Works

From Vila do Abraão by boat

Nearly every boat tour departing Vila do Abraão includes Lagoa Verde. The standard meia volta loop lasts about 6 hours and costs R$100–R$200 on a schooner (escuna) or R$180–R$250 on a shared speedboat, based on 2026 rates posted at the Abraão waterfront. Book the evening before — walk along the pier and you'll see the same route chalked on a dozen boards, so compare prices and boat size before committing.

A speedboat cuts the transit to roughly 40 minutes; a schooner takes closer to an hour and moves slowly enough that the ride itself becomes part of the day. If you're prone to seasickness, the schooner is the gentler option, though the protected bay means chop is usually minimal either way.

The T6 trail alternative

The T6 trail connects Praia da Longa to the lagoon's edge, but it's a rough, root-covered path with no signage in places. I'd only recommend it to hikers who are already staying near Araçatiba and want to avoid tour crowds. For everyone else, the boat is the practical choice — and the only one that lets you snorkel the good section without scrambling over rocks.

What to Expect in the Water

The lagoon's main draw is the snorkeling. Visibility is often 5–10 meters on a calm day, and the sandy bottom is patched with green coral formations that give the water its emerald cast. Sergeant fish (sargentinhos) are the most conspicuous residents — they're small, striped, and curious enough to swim close to mask level. With luck you'll also spot sea turtles grazing near the edges, though they're skittish and won't hang around if a dozen snorkelers splash in at once.

Water depth stays around 1–3 meters across most of the pool, which makes it comfortable for weak swimmers and children old enough to wear a mask. Tour operators hand out pool noodles for floating; snorkel gear is not included on most shared trips, so rent a mask and fins at the Abraão pier the day before (expect R$30–R$50 for a basic set). Don't stand on the coral — it's fragile, and the sandy patches are there for a reason.

The stop itself runs 45–60 minutes on most itineraries. That's enough time to snorkel the main section, float, and take photos without feeling rushed. Boats anchor in the shallows and you wade or step off the stern; there's no dock, so bring water shoes if you have sensitive feet.

When to Go and How to Time Your Visit

April through June and September through November offer the most stable conditions: less rain, fewer boats, and better water clarity. December to March is summer high season — the water is warmer (26–28°C) but afternoon showers can cloud the lagoon, and the pool gets crowded with schooners by mid-morning. If you're visiting in summer, choose a tour that reaches Lagoa Verde early or late in the day; the noon rush is the worst time for both visibility and photos.

One detail most guides skip: Lagoa Verde sits farther from the mainland ferry routes than Lagoa Azul, so it often feels less congested even on busy days. If you can only pick one lagoon and want breathing room, this is the one. The trade-off is slightly less fish diversity than Lagoa Azul, which sits closer to open water.

Frequently Asked Questions

Is Lagoa Verde free to visit?

There's no entrance fee — the lagoon is part of Ilha Grande State Park and open water. The cost is the boat tour, which runs R$100–R$250 per person depending on vessel type. Fees for tours are subject to change; check the operator's posted price at the Abraão pier.

Can you visit Lagoa Verde without a tour?

Only by private boat charter or by hiking the T6 trail from Praia da Longa, which takes over an hour each way. There's no public ferry or water taxi that stops at the lagoon itself, so independent access is impractical for most visitors.

How long do you actually spend in the water?

Most shared tours allow 45–60 minutes at Lagoa Verde. Private charters can stay longer, but the pool is small enough that an hour covers the main snorkel area comfortably.

Is the lagoon suitable for children?

The shallow, calm water suits kids who can swim or float with a noodle, but tour operators typically list 5 years old as the minimum age for speedboat trips. The lack of a dock means you'll be stepping into shallow water from the boat — manageable for most families, less so for toddlers.