Peaks of the Tian Shan mountain range near Almaty in Kazakhstan‘The number of tourists last year was several times bigger than in previous years, especially local tourists,’ says Mikhail Kamirasov, a mountain guide . ‘People can’t go abroad now and they have started going to the mountains. This is literally a pilgrimage site now’Kamirasov takes visitors to the Bogdanovich glacier, which is 3,500 metres (11,500ft) above sea level and features a bowl-shaped formation that some have used to produce otherworldly landscape photographsA tourist poses for a picture on the Bogdanovich glacierA tourist visits the Oktyabrskaya cave in the Bogdanovich glacierThe glacier is dwindling due to global warming. Kamirasov says its lowest point has retreated about 1.5km (1 mile) since he first visited it about 30 years agoSafety experts say some visitors try to save money and go without guides. ‘The higher influx of tourists affects their own safety because completely unprepared people have started going to the mountains now,’ says Viktor Blagoveshchensky, the chief researcher at the Institute of Geography and Water SafetyA tourist jumps for a picture during a hike towards the glacierKamirasov says parts of the glacier are only safe in winter and that once spring arrives the glacier moves and passage walls might collapseA tourist poses for a picture Photograph: Pavel Mikheyev/ReutersThe Tian Shan mountain rangeAs glaciers melt, they leave behind lakes that can overflow and cause mudslides, a significant hazard for Almaty. But for now, city residents are rushing to visit the glacier