Groot Constantia, in the heart of Cape Town’s wine country, can deal with inebriated holidaymakers – but it is invading baboons which have developed a taste for its grapes that the wine makers are struggling with.

Each day, dozens of Cape Baboons gather to strip the ancient vines – the sauvignon blanc grapes are a particular favourite – before heading into the mountains to sleep. A few, who sample fallen fruit that has fermented in the sun, pass out and don’t make it home.