Arenal Volcano, Costa Rica's best-known stratovolcano ... You can hike the national park's trails on your own with just a trail map, but several recent visitors recommended hiring a guide to ...

So, read on, as we dive into exploring some of the most astonishing volcanoes worldwide, from the famous Arenal Volcano in Costa Rica, all the way to the colourful Thrihnukagigur in Iceland.