A serac (originally from Swiss French sérac, a crumbly white cheese) is a steep ridge or pillar of ice formed between two crevasses of a glacier. They are dangerous to climbers since they can collapse with little warning. Swiss French (Suisse romand in French) is the name used for the different dialects of French spoken in the Francophone part of Switzerland known as Romandy. ... Cheese is a solid food made from the curdled milk of various animals—most commonly cows but sometimes goats, sheep, reindeer, and water buffalo. ... Icicles A natural ice block in Iceland Ice is the solid form of water. ... Crevasse on the Gorner Glacier, Zermatt, Switzerland. ... Austrias longest glacier, the Pasterze, winds its 8 km (5 mile) route at the foot of Austrias highest mountain, the Grossglockner. ... Climbers on Valkyrie at the Roaches. ...