What is the difference between Katla ice cave and Vatnajökull?
Aside from the Katla Ice Caves being accessible year-round, the main difference between the Katla Ice Cave and the Blue Ice Caves in Vatnajökull is the colour of the ice.
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The ice caves form where glaciers melt (ice tongues), and the most popular area to visit is the ice caves in Vatnajökull National Park in south-east Iceland. The most popular cave of all is the Crystal Cave because it's so accessible – tour companies can drive right up to the entrance.
On this Langjokull Glacier tour, explore Iceland's (and the world's) largest man-made ice cave. A 20-ton monster truck will take you to the entrance of the cave, located close to the top of the glacier. Then trek through the 1,640-ft (500-m) long ice tunnel with separate frozen halls.
For jeep and snowmobile trips, Langjökull is the most popular glacier in Iceland, and skiing and hiking here is possible as well. Langjökull is only one hour drive from Reykjavik so you can rent a cheap car and drive there yourself for snowmobile tours for example.
Aurora ice caveBut it's not recommended that you go alone. As glacier caves are changing all the time, you shouldn't visit Aurora without an expert guide who can tell you whether it's safe to enter. Find out more about the Aurora ice cave tour.
Layers of lightweight (but warm) breathable clothes. Waterproof outer layers - water will drip inside the ice cave. A hat fine enough to fit under a helmet. Gloves and warm socks.
Ice Cave Safety TipsThe reason for this is that without experience and the right equipment, ice caves can be very dangerous places. Nobody should ever enter an ice cave without a helmet, and for some ice caves, it's actually impossible to enter them without also having an ice axe and crampons.
Glacier ice is blue because the red (long wavelengths) part of white light is absorbed by ice and the blue (short wavelengths) light is transmitted and scattered.