Zanzibar is not one island — it is an archipelago. Around the main island of Unguja lie dozens of smaller islands, sandbanks, and coral atolls, each offering a slightly different experience. Some are famous for giant tortoises. Some for snorkeling. Some for quiet beaches and a 500-year-old baobab tree.
If you are planning a trip to Zanzibar, island tours are almost certainly on your list. But which island should you visit? What is included? What is the difference between the main options?
This guide gives you a complete picture of every major island tour in Zanzibar — what you will see, who each one is best for, and how to decide which one is right for your day.
Why Zanzibar Island Tours Matter
Zanzibar's coastline is beautiful from land, but the island experience truly begins when you step onto a boat. The best things on the island — the sandbanks, the reefs, the quiet beaches, the dolphins — are all reached by water.
For travelers, this means one important thing: choosing the right island tour is the difference between a nice day and an unforgettable one. Each island offers something different.
The Main Zanzibar Island Tours
Here are the major island destinations in Zanzibar — what each one is, and who it is best for.
Kwale Island
Kwale Island is the classic stop on any dhow safari from Fumba Village. It is a small, peaceful island in the middle of Menai Bay, famous for its giant baobab tree (estimated to be over 200 years old) and its quiet white-sand beach.
Most dhow safaris stop at Kwale Island for lunch — a freshly grilled seafood BBQ served on the beach. Visitors can swim in the shallow water, walk around the island, or simply relax on the sand.
Best for: Travelers who want the complete Zanzibar dhow experience — snorkeling, sandbank, island visit, and a seafood lunch, all in one day.
Prison Island (Changuu)
Prison Island — formally named Changuu — is one of Zanzibar's most visited islands. Despite its name, it was never used as a prison. It was built in the 1890s as a quarantine station, and today it is home to a sanctuary of giant Aldabra tortoises, some of which are over 100 years old.
The island also has a small beach, snorkeling in the surrounding waters, and a historic ruin. It is a short boat ride from Stone Town, making it easy to combine with a day in the city.
Best for: Travelers interested in history and wildlife, families with children, and anyone staying in Stone Town.
Mnemba Island
Mnemba Island is a private atoll off Zanzibar's northeast coast. The island itself is not open to the public (it is home to a luxury resort), but the surrounding reef — Mnemba Atoll — is one of the best snorkeling and diving sites in East Africa.
Boats take visitors to the reef for a day of snorkeling, with stops at nearby sandbanks and lunch options on smaller islands. It is a longer boat ride than Menai Bay, but the underwater experience is exceptional.
Best for: Serious snorkelers, divers, and travelers staying on the northeast coast (Nungwi, Kendwa, Matemwe).
The Sandbanks (Blue Lagoon)
Zanzibar's sandbanks are natural formations that appear only at low tide — small islands of pristine white sand rising from the turquoise water. They are, without exaggeration, some of the most photogenic places in the entire archipelago.
Almost every dhow safari stops at a sandbank. The "Blue Lagoon" near Menai Bay is one of the most famous, but there are others — each with its own character.
Best for: Everyone. Even if you only have one day on the water, a sandbank stop is essential.
Chapwani Island
Chapwani is a small, quiet private island located just north of Stone Town. It has a beautiful beach, calm swimming water, and a small resort — but it remains one of the least crowded islands in Zanzibar.
Visitors can arrange day trips with lunch and a few hours on the beach. Snorkeling is possible around the island's edges.
Best for: Travelers who want a quiet escape from busy Stone Town without committing to a full day.
Chumbe Island
Chumbe Island is a protected marine sanctuary — the first in Zanzibar — with an award-winning eco-lodge and one of the healthiest reefs in East Africa. Tourism is carefully managed: only a limited number of visitors are allowed per day.
Visits include guided snorkeling on the protected reef and a walk through the island's forest, which is home to the endangered Ader's duiker (a small antelope).
Best for: Eco-conscious travelers, photographers, and those interested in conservation.
Quick Comparison of All Island Tours
| Tour | Island | What You'll See | Best For |
|---|---|---|---|
| Menai Bay Dhow Safari | Kwale Island + Sandbank | Snorkeling, seafood BBQ, baobab tree | The complete Zanzibar dhow day |
| Prison Island Tour | Changuu (Prison Island) | Giant tortoises, history, beach | History lovers & families |
| Mnemba Atoll Snorkeling | Mnemba Island (reef only) | World-class reef, tropical fish | Serious snorkelers & divers |
| Sandbank Stop | Blue Lagoon & others | White sand, swimming, photos | Everyone — part of most tours |
| Chapwani Day Trip | Chapwani Island | Quiet beach, calm swimming | Relaxed escape near Stone Town |
| Chumbe Eco Tour | Chumbe Island | Protected reef, forest walk | Eco-conscious & photographers |
What Is Included in Most Zanzibar Island Tours
Depending on the tour and the operator, a typical Zanzibar island tour includes:
- Boat transport — usually a traditional dhow
- Snorkeling gear — masks and fins
- Life jackets — for all ages
- Lunch — often a seafood BBQ (some tours)
- Drinks — soft drinks and water
- Local guide — usually a captain from the departure village
What is often not included:
- Hotel pickup — usually available for an extra fee
- Marine park fees — sometimes included, sometimes extra
- Alcoholic drinks — usually extra
- Gratuities — optional, never required
How to Choose the Right Island Tour
Here is a simple way to decide:
- If you want the classic Zanzibar dhow day: Book a Menai Bay dhow safari. It includes snorkeling, sandbank, Kwale Island, and seafood lunch — the complete package.
- If you want history and wildlife: Book a Prison Island tour from Stone Town. The giant tortoises and the historical ruins make it unique.
- If you are serious about snorkeling: Book a Mnemba Atoll tour. It has the best reef in the region.
- If you want a quiet escape: Look into Chapwani or Chumbe — both offer quiet, uncrowded experiences.
- If you are short on time: Combine a Prison Island tour with a Stone Town walking tour. It fits easily into one day.
Practical Tips for Any Island Tour
- Book direct with local operators. This is nearly always cheaper, and gives you a real person to talk to on WhatsApp.
- Confirm the inclusions. Ask about pickup, park fees, and lunch before you book.
- Bring reef-safe sunscreen. Especially for Menai Bay and Chumbe, where coral is protected.
- Bring a waterproof bag for phone, camera, and cash.
- Wear a hat and light long-sleeve shirt. Zanzibar's sun is strong on the water.
- Pay attention to group size. Smaller groups mean more personal attention.
- Respect the marine environment. Do not touch coral, do not chase wildlife, do not litter.
When to Visit the Islands
The best months for island tours are the dry seasons:
- June to October: Calm seas, clear water, dry weather — the best overall season.
- December to February: Warm water, mostly calm, busier with tourists.
- March & November: Variable — can be beautiful or rough depending on the day.
- April to May: Long rains. Rough seas, low visibility, many operators closed.
Frequently Asked Questions
Which island is best for snorkeling in Zanzibar?
Mnemba Atoll is the most famous for serious snorkeling. Menai Bay (near Fumba Village) is the most reliable for beginners and families because the water is calmer and the reefs are protected.
Can I visit several islands in one day?
Yes — many dhow safaris combine a reef stop, a sandbank stop, and Kwale Island in a single day. Prison Island is usually a separate trip from Stone Town.
Are these tours suitable for children?
Yes. Life jackets are provided for all ages, and the water in Menai Bay is calm and shallow. Prison Island is also very popular with families.
Do I need to book in advance?
In high season (June–October, December–February), we recommend booking 3–5 days ahead. In low season, one day ahead is often enough.
Can I combine island tours with other activities?
Yes. Many travelers combine a Prison Island tour with a Stone Town walking tour, or a Menai Bay dhow safari with a spice tour on the same day. Ask your operator for the best combination.
Are there island tours for non-swimmers?
Absolutely. Life jackets are provided and the crew assists non-swimmers at every stop. Many guests who do not swim still love the sandbank and beach stops.
Ready to book your island tour?
Our Menai Bay dhow safari includes snorkeling, sandbank, Kwale Island, and a seafood BBQ — the complete Zanzibar island experience. Since 2010.
Chat on WhatsApp Book OnlineFinal Thoughts
Zanzibar's islands are not all the same. Some are famous for tortoises, some for their reefs, some for their quiet beaches and ancient trees. The best island tour for you depends on what you want from the day.
Whatever you choose, go with a registered local operator, respect the marine environment, and allow yourself time to enjoy the water. Zanzibar rewards those who slow down.
— The Authentic Dhow Expeditions crew, Fumba Village, Zanzibar