5 Best Sights in West Iceland and Snæfellsnes Peninsula, Iceland

On a clear day, you can see this 700,000-year-old glacier from Reykjavík. Book with local tour outfitters to hike the glacier or even ride a special terrain-specific bike on it. This is the place that inspired Jules Verne's novel Journey to the Center of the Earth.

If you're looking for a more challenging hike, check out Eldborg Crater. After walking 2½ hours, you'll find a 196-foot crater sweeping up from the lava fields. You can walk around as well as up the crater.

At the edge of the Hnappadalur Valley, north of Borgarnes, you'll find the Gerduberg Basalt Columns, which form an immense wall of striking geometric patterns. You won't be able to see the hundreds of columns from the road, which only adds to the sense of mystery.

Walk the 560 feet to the top of this volcanic crater to take in the sights of the Borgarfjörður region and the stunning Lake Hreðarvatn. Grábrók was formed by a fissure eruption 3,000 years ago.

If you want to explore a volcanic crater without hiking too far, Saxhóll is the place. The most interesting views are from the top, where you can take in the whole scene at the center of the crater. Getting up is easier than you would think; man-made steps lead visitors up to the crest, and you'll be up at the top before you know it. Make sure to spend time walking around the peak, but watch your step.