Chole Island Travel Guide: Ruins and Wildlife in Tanzania

Chole Island requires all visitors to pay a daily Mafia Island Marine Park fee of 23.60 USD including tax before crossing the channel from the Utende pier. This small outcrop — roughly one square kilometer in size — sits within the largest marine protected area in the Indian Ocean and remains largely untouched by modern infrastructure. Because there are no cars or motorbikes on the island, the environment is exceptionally quiet compared to the mainland or nearby Zanzibar. Most travelers arrive via a ten-minute boat trip in a traditional wooden dhow, which is the primary mode of transport for the 1,000 residents who call this coral rag island home. The lack of electricity in most village areas creates an atmosphere where time feels tethered to the tides and the sun rather than a clock.

Historical Architecture and Traditional Industry

The Shirazi Ruins and Omani Influence

The southern end of the island contains significant coral stone ruins dating back to the 19th century when Chole served as the regional capital of the Mafia archipelago. Omani Arabs chose this location for its defensive advantages and deep-water access, leaving behind a mosque, administrative buildings, and a series of graves. You will notice that many of these structures are now being reclaimed by massive baobab trees with roots that split through 200-year-old masonry. These ruins are not roped off or sterilized for tourists — they are part of the living geography where children play and goats graze. The German colonial administration also left their mark here with a two-story customs house that still overlooks the water, though it has long since lost its roof to the elements. I find the lack of interpretive signage actually enhances the experience, allowing for a more raw discovery of the crumbling stone arches and hidden niches.

Traditional Dhow Building

Walking along the western shoreline usually leads you to the informal shipyards where local craftsmen build and repair dhows using manual tools and ancient techniques. These shipbuilders use mahogany or mangrove wood, hand-drilling holes and sealing the hulls with shark oil and lime. It is fascinating to watch them work without blueprints, relying instead on knowledge passed down through generations of families. The local dhow-building area feels more authentic at high tide when the water laps against the timber and the sound of hammers echoes through the palms. You should expect to pay a small, informal tip if you spend significant time photographing the craftsmen, as this is a working site rather than a staged museum exhibit. Unlike the tourist-centric dhow cruises in Stone Town, the vessels constructed here are intended for heavy-duty fishing and transporting goods across the Mafia Channel.

Biodiversity and Conservation Efforts

The Comoros Lesser Fruit Bat Sanctuary

Chole Island is one of the few places in the world where you can see the Pteropus seychellensis comorensis, also known as the Comoros lesser fruit bat, in its natural habitat. These are not typical cave-dwelling bats; they are large, diurnal mammals with wingspans reaching up to one meter and distinctive fox-like faces. They spend their days hanging from the branches of massive trees in the center of the island, occasionally taking flight to move between feeding spots. Because they are active during the day, you do not need special equipment or night-vision gear to observe their social interactions and grooming habits. The local community has recognized the ecotourism value of these creatures, leading to a shift away from hunting them for food toward protecting their roosting sites. Watching hundreds of these bats silhouettes against the bright blue sky during a mid-afternoon walk is a surreal sight that most visitors to Tanzania completely miss.

Marine Life and Mangrove Ecosystems

The island is surrounded by dense mangrove forests that act as a nursery for the diverse fish species found in the surrounding Mafia Island Marine Park. These trees filter the water and protect the shoreline from erosion, creating a complex root system that can be explored by kayak during high tide. The water temperature here remains warm throughout the year, typically hovering between 25 and 29 degrees Celsius, which supports vibrant coral growth just offshore. Snorkeling trips departing from the island often head to the Kinasi Pass, where the outgoing tide pulls nutrient-rich water through the channel, attracting large schools of trevally and occasional reef sharks. While the visibility fluctuates depending on the monsoon season, the variety of macro life like nudibranchs and seahorses is consistently high. I suggest visiting the mangroves at sunrise when the birdlife is most active and the water surface is as flat as a mirror.

Frequently Asked Questions

How much does it cost to visit Chole Island?

Visitors must pay the Mafia Island Marine Park fee which is 23.60 USD per person for every 24-hour period spent within the park boundaries. This fee is usually paid by credit card at the park gate in Utende before you board the boat to Chole. Boat transfers from Utende generally cost between 5 and 10 USD depending on whether you take a private dhow or a shared village boat.

What is the best time of year to see the fruit bats?

The Comoros fruit bats are resident on the island year-round, so you are guaranteed to see them regardless of the month. However, the clearest sightings occur during the dry seasons from June to October and January to February when the trees have less dense foliage. During these months, the weather is also more favorable for walking the island trails without encountering mud.

Is there accommodation available on Chole Island?

Chole Mjini is the primary eco-lodge on the island, famous for its elaborate treehouses built into baobab trees that offer views of the ruins and the sea. There are also a few smaller guesthouses and homestays that provide a more basic and affordable experience for travelers wanting to stay overnight. Booking in advance is necessary during the peak season from July to September because the total number of beds on the island is very limited.

Can I visit Chole Island as a day trip from Mafia Island?

Yes, many people visit Chole as a half-day or full-day excursion from the hotels located in Utende on the main Mafia Island. A typical day trip includes a guided walk through the ruins and the bat sanctuary followed by a visit to the dhow-building area. It is best to depart Utende by 9:00 AM to see the island before the midday heat becomes too intense for comfortable walking.