St Moritz White Turf Races - in pictures

A spectator takes a photo of a White Turf horse racing event in Saint Moritz on 3 February 2013. The races are held on the frozen lake of the Swiss mountain resort Photograph: Boris Heger/AFP/Getty Images

Leiloken ridden by Aurelien Lemaitre competes during the Grand Prix Guardaval Immobilien race Photograph: Lars Baron/Bongarts/Getty Images

Mirco Demurco, left, on Amazing Beauty is on the way to win the Guardaval Estate Grand Prix Photograph: Samuel Truempy/EPA

A woman holds her dog dressed in fake fur and tied with a leash made of fake plastic sausages.The races are held on the frozen lake of the Swiss mountain resort and are famous among the jet set Photograph: Boris Heger/AFP/Getty Images

Riders and horses compete during the American Airlines Grand Prix Photograph: Samuel Truempy/EPA

Princess Hillary ridden by Dennis Schiergen leads the field into the first turn during the Hotelleriesuisse St. Moritz und Galopprennfreunde Schweiz race Photograph: Lars Baron/Bongarts/Getty Images

Noceen de Digeon ridden by Philippe Besson (R) leads the field into the final turn during the Grand Prix Elektro Koller race Photograph: Lars Baron/Bongarts/Getty Images

Jockeys jostle for position. The first edition of the White Turf races was held in 1906 and had 13 competitors Photograph: Boris Heger/AFP/Getty Images

Noceen de Digeon ridden by Philippe Besson competes during the Grand Prix Elektro Koller race Photograph: Lars Baron/Bongarts/Getty Images

Tools and horseshoes specifically made for gripping on the snow Photograph: Boris Heger/AFP/Getty Images

A dog is carried in a luxury bag as his owner takes a look at luxury cars on show Photograph: Boris Heger/AFP/Getty Images

Riders and horses compete during the Grand Prix "Guardaval Immobilien" on the first weekend of the White Turf races in St. Moritz Photograph: Samuel Truempy/AP

A ski joering competitor takes part in the White Turf horse racing event in St. Moritz. Ski joering was an exhibition event in the 1928 Olympics, also held in St Moritz Photograph: Boris Heger/AFP/Getty Images

Tepmokea ridden by Shane Kelly (left) leads the field into the final turn during the Grand Prix Guardaval Immobilien race Photograph: Lars Baron/Bongarts/Getty Images