Stuðlagil Canyon, located in East Iceland, is famed for its stunning basalt columns and turquoise river. The canyon is generally accessible via a relatively easy hike from a parking area, though some uneven terrain may be encountered. Visiting solo is feasible for experienced hikers, while guided tours offer deeper insights and ensure safety. Summer months (June-August) offer the best weather and accessibility; winter visits can be challenging due to snow and ice. Expect to spend around 2-4 hours exploring the canyon, and the cost is primarily related to transportation to and within the area, as entry to the canyon is free. Note that the water level can fluctuate, impacting the visibility of the basalt columns; checking conditions beforehand is recommended.