Things to Do in Nosy Be, Madagascar: Diving, Islands, and Wildlife

by Jordan Lamont · March 20, 2026

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At a Glance

Where to stay: Check hotel availability on Agoda — Nosy Be
Book tours: Browse Madagascar tours on GetYourGuide

At a Glance

Best time: May-October (dry, whale watching July-Sept)
Top activity: Snorkeling, whale watching, island hopping
Book tours: Browse Nosy Be activities on GetYourGuide
Stay in Nosy Be: Check hotels on Agoda – popular dates sell out fast

Nosy Be is Madagascar’s most developed tourist island — and deservedly so. A 320 km² volcanic island off the northwest coast, it offers world-class snorkeling, humpback whale encounters, and some of the most diverse marine life in the Indian Ocean.

It is also genuinely laid-back in a way that larger Indian Ocean resort islands are not. Infrastructure varies, the roads are rough, and power cuts happen — but that’s part of what makes it feel real.

When to Go to Nosy Be

April–November — dry season. Best visibility for diving and snorkeling. Water temperature 26–29°C.
July–September — humpback whale season. Hundreds of whales come to breed in the Nosy Be channel. This is the main reason to time your visit for mid-year.
December–March — rainy season. Fewer visitors, lush green interior, lower prices — but some days are rained out and sea conditions can be rough.

Top Things to Do in Nosy Be

1. Snorkeling at Nosy Tanikely Marine Reserve

Nosy Tanikely is a protected islet 10 km south of Nosy Be’s main harbor (Hell-Ville). The marine reserve wraps around the island and contains some of the best-preserved coral in the region.

What you’ll see: green sea turtles (they are habituated and come close), white-tip reef sharks, rays, parrotfish, and dense reef fish. The snorkeling starts from the beach — no boat required once you’re there.

Boats leave from Hell-Ville harbor in the morning. Most tours include snorkel gear, a picnic, and time to climb to the island’s lighthouse.

Book Nosy Tanikely snorkeling tours | Nosy Tanikely on Viator

2. Humpback Whale Watching (July–September)

The Mozambique Channel is a critical breeding ground for humpback whales. Between July and September, hundreds of whales congregate north of Nosy Be. Boats leave Hell-Ville harbor and reach the whale areas in 30–60 minutes.

What to expect: most tours guarantee sightings. Breaching, tail-slapping, and mother-calf pairs are all commonly seen. On calm days, boats drift with engines off while whales surface within meters. Bring seasickness tablets if you’re prone — the channel can be choppy in July–August.

Book whale watching tours | Whale watching on Viator

3. Island Hopping: Nosy Komba + Nosy Iranja

The classic Nosy Be day trip visits two nearby islands:

Nosy Komba — a small forested island home to semi-wild black lemurs. Walk the forest trails with a guide; the lemurs come close enough to climb on you (be respectful, let them come to you).
Nosy Iranja — two islets connected by a white sand beach at low tide. The beach is stunning; snorkeling off the sandbar is excellent. Spinner dolphins are frequently spotted here.

Book Nosy Komba + Nosy Iranja tour | Island hopping on Viator

4. Sunset Catamaran or Sailing

A sunset sailing tour around Nosy Be’s bays is one of the island’s most reliably enjoyable experiences. Most tours include drinks, snacks, and swimming stops. Dolphins frequently join alongside the boat at dusk.

Book sunset sailing tours | Catamaran tours on Viator

5. Scuba Diving

Nosy Be has several dive sites for all levels. Highlights:

Nosy Sakatia — coral walls, leafy sea dragons, pygmy seahorses
Nosy Iranja — shallow reef suitable for beginners
Shark Point — white-tip and grey reef sharks. Experienced divers only.

Multiple PADI dive centers operate in Hell-Ville and Ambatoloaka. Open Water certification courses are available.

6. Lemur Encounter in the Interior

Nosy Be’s forested interior has resident populations of black lemurs. Several nature walks and guided treks explore the island’s volcanic hills.

Book Nosy Be lemur tours | Nosy Be lemur tours on Viator

7. Visit a Ylang-Ylang Plantation

Nosy Be is Madagascar’s perfume island — it’s the world’s largest producer of ylang-ylang, used in Chanel No. 5 and other perfumes. Several plantation tours explain the distillation process and production cycle. Tours typically include samples and an opportunity to buy essential oils.

Book ylang-ylang plantation tours

Essential Gear for Madagascar’s Coastal Activities

Madagascar’s Underwater World Is World-Class — Film It in 5.3K Before It’s Gone
The coral gardens off Nosy Be, the whale sharks of the Mozambique Channel, the humpback whales migrating to Île Sainte-Marie — your phone doesn’t go underwater. The GoPro HERO13 Black shoots 5.3K60 video and is waterproof to 10 metres without any housing. Mount it on your snorkel mask, clip it to your kayak, hand it to your dive guide. Sold directly by Amazon.
Check current price and availability on Amazon →

Madagascar’s UV Index Hits 11+ — Your Skin Needs More Than Sunscreen in the Water
Nosy Be, Île Sainte-Marie, the reefs off Fort Dauphin — spectacular coastal waters under an equatorial sun with UV regularly hitting 11+. Sunscreen washes off within 20 minutes in water. O’Neill’s UPF 50+ long-sleeve rash guard blocks 98% of UV radiation all day, in and out of the water, without reapplication. Stays in place during snorkelling and dives.
Check current price and availability on Amazon →

Snorkelling Madagascar’s Reefs Without UV Protection Is How You Come Home With a Week of Sun Damage
The coral reefs of Nosy Be and Île aux Nattes are some of the most beautiful snorkelling in the Indian Ocean — in direct equatorial sunlight every minute you’re in the water. Hurley’s Women’s UPF 50+ long-sleeve rashguard covers your core, arms, and shoulders with full-spectrum UV protection. Lightweight, fast-drying, designed for real ocean conditions.
Check current price and availability on Amazon →

One Wave, One Pirogue Crossing, One Rain Shower — That’s All It Takes to Lose Your Phone in Madagascar
Madagascar’s water crossings are done in pirogues — narrow dugout canoes with no sides to speak of. One unexpected wave. One overfilled pirogue. One downpour on the RN7 with nowhere to shelter. The JOTO Universal Waterproof Pouch seals your phone in an IPX8-rated case to depths up to 30 metres. Use the touchscreen through the case, take underwater photos. Under $15.
Check current price and availability on Amazon →

Your Camera, Passport, and Valuables Need a Waterproof Shell for Madagascar’s Boat Transfers
Boat transfers to Nosy Komba, dive sites, and the remote beaches of Masoala — waves hit the deck, spray soaks everything unprotected. A wet camera, a soaked passport, or a ruined MacBook is not a one-hour problem in a country where Apple Stores don’t exist. The Earth Pak Dry Bag rolls and clips shut to create a 100% waterproof seal rated to IPX8. NY Times Wirecutter-recommended, 5-year warranty.
Check current price and availability on Amazon →

All Nosy Be tours on GetYourGuide
Nosy Be experiences on Viator
Compare car rental rates on Carla
SafetyWing travel insurance — travel medical insurance for island travel
World Nomads — covers adventure activities: trekking, diving, motorbikes. Compare both.

Where to Stay in Nosy Be

Most accommodation clusters in three areas:

Ambatoloaka — the island’s main tourist strip. Best for nightlife, restaurants, and dive centers. Noisy at night.
Madirokely — quieter beach area north of Ambatoloaka. More mid-range hotels and family-friendly lodges.
Andilana — the north tip of the island. Remote, upscale lodges, excellent beach. Requires a vehicle to reach town.

Browse Nosy Be hotels on Agoda — best rates for Indian Ocean accommodation. (Link updating shortly as we complete our hotel partnership.)

Getting Around Nosy Be

The island is small (320 km²) but roads are unpaved and potholed. Options:

Tuk-tuk (pousse-pousse motorisé) — for short trips in and around Hell-Ville. Negotiate before you get in.
Scooter hire — the most popular way to explore the island. Available from most hotels and rental shops. International licence usually required.
4WD hire with driver — most practical for multi-stop days or reaching Andilana from Hell-Ville

Considering renting a car for your Madagascar trip? Compare car rental rates on Carla before you book.

Getting to Nosy Be

By air: Direct flights from Antananarivo (Tsaradia, 1.5 hours). Also occasional direct international flights from Paris (Air Austral via Réunion). Book domestic flights early — they sell out in July–September.
By boat: Slow ferries from Ankify on the mainland (2–3 hours). Not recommended with luggage; use for the experience only.

Travel Insurance for Nosy Be

Medical facilities on Nosy Be are limited. Serious injuries or illness require evacuation to Antananarivo or Réunion. SafetyWing travel insurance covers emergency medical evacuation — don’t visit remote islands without it.

FAQ — Things to Do in Nosy Be

Flight delayed or cancelled? Flights to Madagascar often connect through Paris, Nairobi, or Dubai. If your connection was delayed over 3 hours, EU regulation EC 261 may entitle you to up to EUR 600 in compensation.
Check your claim free on AirAdvisor – no win, no fee.

What is Nosy Be most famous for?

Nosy Be is most famous for its diving, island hopping (Nosy Tanikely, Nosy Komba, Nosy Iranja), and humpback whale watching from July to September. The island’s beaches and laid-back atmosphere also make it a popular romantic getaway.

Do you need a guide to visit Nosy Tanikely?

Nosy Tanikely is a marine reserve accessible only by boat. You do not need a personal guide — most visitors join group boat tours from Ambatoloaka or Madirokely that include a guide, snorkelling equipment, and lunch on the island.

Can you do a day trip from Nosy Be to see lemurs?

Yes — Nosy Komba (Black Lemur Island) is a 30-minute boat ride from Nosy Be and has habituated black lemurs that you can observe up close. It is typically combined with Nosy Tanikely as an island-hopping day trip.

What is the best way to get around Nosy Be?

Scooter rental is the most popular option for independent exploration — rates are around €15–20/day. Tuk-tuks and mototaxis cover shorter hops. For day trips to islands, join a boat tour from the main beach areas.

Plan Your Trip to Madagascar

Where to Stay