About an hour from Reykjavik, Thingvellir National Park is a perfect example of Iceland's incredible natural beauty and diverse landscapes. A popular stop along the Golden Circle route, Thingvellir boasts spectacular hiking trails, Silfra Fissure (a spot where you can snorkel or scuba dive between two tectonic plates), and majestic waterfalls. It's also the only place in the world where you can actually stand between two continental plates.