Stuðlagil Canyon is a natural wonder located in eastern Iceland that features striking blue-green waters and towering basalt columns. The name "Stuðlagil" translates to "column canyon" in Icelandic, referencing the tall hexagonal basalt columns that make up the canyon walls. The canyon was formed over time by glacial floods that carved out the soft volcanic rock, resulting in its unique columnar structure.

Stuðlagil Canyon has two viewing points. The first one is on the west side, which is a less adventurous viewpoint situated near the Grund farm. The hike from the parking lot is short, taking about 5 minutes or less as you go down a flight of metal stairs built in 2020. The view from this side is different from the other viewing point on the east side. Visitors are encouraged to donate to maintain the bathrooms, parking lot, and paths, with the donation box hooked to one of the information signs.

The second viewpoint is on the east side of Stuðlagil Canyon, which involves a 45-minute hike to get inside the canyon. It is essential to note that you cannot cross the river from the platform on the west side to the popular photo spot. It is widely regarded as one of the most hazardous rivers in Iceland, so hikers should take precautions and avoid crossing. It is worth taking the time to hike the east side of the canyon, as it provides a different perspective of the canyon's beauty.