Snorkeling Mnemba Island & Stonetown: Dolphins and coral reefs

Swim among colorful coral reefs, spot dolphins, then explore Stonetown’s historic alleys.

Snorkel the coral reefs around Mnemba Island in Tanzania with a professional guide, spotting tropical fish, sea turtles and dolphins in the crystal-clear water. The day includes a private boat, snorkeling equipment, an air-conditioned vehicle for pickup, and a guided walking tour through Stonetown's UNESCO World Heritage streets, where Arab, Swahili, Persian and European architecture blend in narrow lanes lined with the House of Wonders and the Old Fort. Eight hours total. The Old Slave Market Site entrance fee is optional at checkout.

Step-by-step itinerary

Mnemba Island and Stone Town tour

• Arrive at Mnemba Island
• Snorkel in coral reefs
• Relax on white sandy beaches
• Travel to Stone Town
• Explore narrow streets and markets
• Visit House of Wonders
• Visit Old Fort
• Interact with locals and learn culture

The experience

What makes this day work is the split between two completely different Zanzibar experiences. The morning and early afternoon center on Mnemba Island itself: a private island ringed by coral reefs where you enter the water with snorkeling gear and move through schools of tropical fish, past sea turtles, and if conditions align, alongside dolphins. The reef sits in a marine conservation area, so the guide sets the rules for how to move through it without damaging the coral. You get bottled water and all the equipment. The boat is private to your group.

The second half shifts to Stonetown, the historic port city on Zanzibar's main island. You walk narrow streets that twist between buildings layered with centuries of trade: Swahili, Arab, Persian, Indian, European styles stacked into single facades. The House of Wonders, an ornate palace, and the Old Fort, a 17th-century fortress, anchor the landmarks your guide points out. This is a walking tour through a UNESCO site, not a museum visit. You move through the streets themselves, past markets and local life. The Old Slave Market Site is a separate entrance fee if you want to add it.

An air-conditioned vehicle picks you up and brings you back. Your guide speaks English, Spanish, Italian, French or one additional language depending on the option you choose at checkout. The whole day runs eight hours.

What’s included

• Snorkeling equipment and bottled water.
• private boat to Mnemba Island.
• air-conditioned vehicle for pickup and return.
• professional guide in your chosen language.
• guided walking tour of Stonetown's UNESCO streets.
• all fees and taxes.

Before you book

Days and timesEvery dayDeparts at 08:00

Book up to1h before

AgesAdult (7 to 90 years) · Under 7: can't be included in the booking

GroupPrivate

Live guideEnglish, Spanish, French, German and Italian

Meeting point and pickupHotel pickup included.

Cancellation and refundsFree cancellation up to 24 h before the start. After that, no refund.

Prices and times updated 13 days ago

Good to know

Easy physical levelPets welcomePublic transport nearby

Operated by Charisma_Experience

Is this one for you?Book this if you want to split your day between water and culture: the morning snorkeling at Mnemba Island leaves the afternoon free for Stonetown's history and architecture, and the private boat and vehicle mean no waiting for group departures or transfers.

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Top questions

What languages is the guide in?

Live guide in English, Spanish, French, German and Italian.

Can I snorkel at Mnemba Island if I've never done it before?

Yes. Snorkeling equipment is included and your professional guide will show you how to use it. The tour is suitable for all physical fitness levels, and you can move at your own pace in the water around the island.

What marine life will I actually see when snorkeling at Mnemba Island?

Mnemba Island's coral reefs are home to tropical fish, sea turtles, and dolphins. The exact species and numbers depend on the day and the season, but the reefs are active year-round.

Is the Stonetown walking tour included, or do I pay extra?

The Stonetown walking tour is included in the day. Your guide leads you through the UNESCO streets and shows you landmarks like the House of Wonders and the Old Fort. The Old Slave Market Site entrance is optional and costs $10 per person if you want to add it at checkout.

How long do I spend snorkeling versus walking in Stonetown?

The day is eight hours total. Most of that time is spent on Mnemba Island in and around the water. The Stonetown walking tour takes up the later part of the afternoon before you return.

What's included in the price, and what do I need to bring?

Included are snorkeling equipment, bottled water, the private boat, the air-conditioned vehicle for pickup and return, all fees and taxes, and the guide. Bring sunscreen, a towel, and a change of clothes. Wear something you don't mind getting wet.