Aside from its historic interest, Thingvellir holds a special appeal for nature lovers. It is the visible site of the mid-Atlantic Ridge where the North American and Eurasian tectonic plates meet, and are being pulled apart at a rate of 2 centimeters (nearly an inch) per year. The geology here is not only interesting to learn about but also spectacular to behold.
At Almannagja, on the west side of the plain, you can see the easternmost edge of the North American tectonic plate, which is normally submerged in the Atlantic Ocean. On the east side at the Heidargja Gorge, you are at the westernmost edge of the Eurasian plate.
There is much to explore in the park including the 20 meter (66 ft) Oxara waterfall, and the Nikulasargja Gorge, better known as Peningagja (Money Gorge) because it is customary to toss coins (and sometimes credit cards!) into the icy-cold water and make a wish.
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