Fifty shades of green: Hraunfossar and Bjarnafoss
About an hour and a half drive from Reykjavik (in summer), we find the town of Reykholt (note there are two towns called Reykholt).!).
Reykholt is close to Pingvellir, a national park, where you can hike and find the Öxarárfoss, a beautiful waterfall, which is often completely frozen in winter, and then very photogenic.
On the edge of Pingvellir you will find the Hraunfossar falls, in English this means: Lava falls, in Dutch: Lava falls.
Foss is Icelandic for waterfall: fossar is the plural, Hraun means Lava.
By the way, Hraun is also the name of very delicious chocolate chunks, which you can buy at the Bonus, we always devour them in the holidays, but I digress.