A farmer wearing a yellow raincoat and hard hat to protect him from the heavy rain while looking after his cattle, Lesotho, Africa

Rescue work in Algiers after earthquake disaster in Algeria, October 1980

A worker wearing hard hat and using a mobile phone at the natural gas plant at Mabta Pud in Thailand, Southeast Asia, Asia

Cave guide wearing protective hard hat inside one of the ice caves under the Vatnajokull Glacier, South Iceland, Polar Regions

Day trip for tourists, Saklikent Canyon nature park, Esen Cay whitewater gorge, rock canyon in the Ak daglar, Akdagi Mountains, Fethiye in Mugla province, Turkey, Eurasia

Lumberjack secured by a rope felling a tree piece by piece with a chainsaw, Germany, Europe

Group of cyclists cycling in the GP Tell 2009, Switzerland, Europe

A foxhunt in progress, riders on horseback wearing hard hats riding across countryside, Hunt riders, England