Where it is
Mtende is a village at the southern tip of Unguja, in Kusini district, round the corner from the long east-coast lagoons and a short drive from Makunduchi and Kizimkazi. The beach is a small cove below the village.
The honest position is that almost nothing about the beach itself is documented. What is documented is the land behind it, and that turns out to be the more interesting half.
The forest, which is the sourced part
Mtende Community Forest is managed under the same authority as Jozani-Chwaka Bay National Park, alongside the community forests at Charawe, Muyuni and Ukongoroni. The authority describes it as a sanctuary where greenery meets dramatic coastal cliffs, interwoven with caves, traditional sacred sites and rare plant species, and gives it as more than 280 hectares, with more than eight caves, more than five sacred sites and 120 households.
Those sacred sites are the thing to register before wandering. This is not an empty coastline with some rocks in it; parts of it are in customary use, and caves on this coast are frequently shrines. Going with someone from the village is the difference between a walk and a trespass.
The beach, and what is not verified
Every description of the cove comes from travel writing and excursion listings rather than from an authority, and they are consistent with one another: a small beach between rock and cliff formations, reached by steps, with the sea retreating a long way at low water to expose pools, and calm swimmable water in the cove at high tide. None of that is sourced, including the distances sometimes quoted for how far the sea goes out.
What can be said with confidence is structural. This is the southern end of Unguja, the tidal range across the island runs from about a metre at neaps to over three metres at springs, and a cliff-backed cove on this coast will behave accordingly: swimmable around high water, a rock and sand platform around low. The Zanzibar guide sets out how the tide governs the whole island.
What a visit is realistically
A short stop on a drive around the south rather than a day. There is no resort strip here and very little infrastructure; the first international hotel on this southern shore was built in 2006, which gives the scale of development. It combines with the south-coast drive, with Kizimkazi’s twelfth-century mosque, and with the Jozani Forest on the way back north.
Reef shoes for the rock and the pools, as everywhere on this coast. Village tours covers how visits to communities like this one are arranged.
Common questions about Mtende
Is Mtende a good swimming beach?
Around high water, by all accounts. It is a small cliff-backed cove at the southern tip of the island, and like the rest of this coast it drains at low tide. No authority describes it, so the detail comes from travel writing rather than from a source.
What is the forest behind it?
Mtende Community Forest, run under the Jozani-Chwaka Bay National Park and Biosphere Reserves authority: more than 280 hectares, over eight caves, more than five sacred sites and 120 households.
Can I explore the caves?
Several are sacred sites in customary use. Go with someone from the village rather than alone, and treat the request as binding rather than decorative.
Is it worth a detour?
As part of a drive around the south, yes — it is a striking piece of coast and almost nobody is on it. As a destination in its own right, from the north or east of the island, it is a long way to go for a small cove that nobody has written up.