Greenland is often perceived as a huge block of ice and snow. In fact, nearly 80% of its territory is indeed a glacier. However, the very Ice Sheet or Ice Cap is not monotonous or dull,—you'll be surprised how much colour it can reveal. Blue and green ice walls, the sites of glacial lakes as well as rivers flowing inside the ice are among most beautiful landscapes of the world.
Greenland Ice Sheet is actually the second largest glacier after Antarctica's, and one of the oldest relatively uncharted hiking area. If you desire to escape from civilisation, that's the best choice due to sparse population and untouched environment, but also no internet or mobile connection across the most of its territory. The glacier itself is believed to be 18 million years old. Upper layers of ice age back to 500 to 100,000 and even 250,000 years. It's a strange feeling to realise that you're in one of the world's oldest places, where nothing has changed for millions of years.
The Ice Sheet of Greenland has the area of 1.7 million square kilometres and contains 2.8 million cubic kilometres of ice. Around 65% of the ice lies at over 2,000 m above the sea, and only a third—below the sea. Thus, if the glacier was ever to melt, Greenland would become a ring-shaped country with a huge lake in the middle of it. As to the impact on the rest of the planet, the least fortunate would have been the low-lying countries, since sea level would have raised for more than seven meters.
A plenty of ways to explore the famed glacier include kayak trips and helicopter flight. But hiking is nothing to compare with. Besides a great enthusiasm and good physical condition, to explore the glacier on foot in an expedition, you'll need an official permission from the government. Ice Cap Tours run from May to October.