Skaftafell National Park
Lonely Planet review for Skaftafell National Park
Europe's largest national park encompasses a breathtaking collection of peaks and glaciers and is the country's favourite wilderness: 160,000 visitors per year come to marvel at thundering waterfalls, twisting birch woods, and the brilliant blue-white Vatnajökull icecap - Earth's largest icecap outside the poles, weighing in at 3000 billion tonnes.
Expansion plans are underway - eventually, Skaftafell and Jökulsárgljúfur will join to form one 15,000km sq megapark - 40% of the entire country.
There are walking trails, tours and accommodation available in the area. There's also a very helpful visitor centre which shows a cool film about the 1996 jökulhlaup (glacial flood) in peak season.