Africa's pretty little island with perfect white beaches that's loved by billionaires

Africa is quickly becoming more and more popular among European tourists, and it's easy to see why. Places like Mauritius, Madagascar and Zanzibar attract hundreds of thousands every year, and those numbers seem to be growing.

But the world's second-largest continent is also home to one of the most exclusive private islands anywhere in the world. Mnemba Island is just 500 metres across and sits off the northeast coast of Zanzibar, Tanzania. You can walk around the whole thing in less than 30 minutes, but it has become a favourite retreat for the rich and famous.

Bill Gates is among those said to have stayed on the island, along with celebrities like Mick Jagger, Naomi Campbell, Tom Cruise and Paul McCartney.

The island, which costs around £2,000 a night, is owned and operated by luxury travel company &Beyond.

The company describes itself as a group "specialising in bespoke travel and luxury safaris," and says Mnemba is all about "barefoot luxury and unfiltered nature".

There are just 12 open-air Bandas (beachside cottages) hidden under pine trees, and each one looks out directly onto white sands and turquoise waters.

There are no TVs or Wi-Fi unless requested. And no doors or windows either, only sand paths, palm trees, and the sound of the sea.

"It is definitely barefoot luxury," said one &Beyond guest. "With open Bandas with no windows allowing the sea breeze to blow through and you to be woken by natural light."

According to &Beyond, Mnemba is also a place where "care becomes conservation."

Every stay supports local projects, including a coral nursery, turtle nesting grounds, and protection efforts for two endangered antelope species.

The island is surrounded by coral reefs that offer excellent snorkelling and diving.

There's also kayaking, yoga, and even catch-and-release fishing.

But what makes Mnemba different is how quiet it stays.

With only space for around two dozen guests at a time, the atmosphere is peaceful and calm.

In fact, it is estimated that fewer than 40,000 people visit each year, and that includes day-trippers.

&Beyond says: "All the complexities of life are stripped away, leaving only crystal turquoise waters, cool white beaches, and a friendly jungle."

And for billionaires and honeymooners, it seems that's more than enough.