Best for
Ice caves + glacier lagoons
Ice caves accessible Nov–Mar; Jökulsárlón year-round.
Europe's largest glacier by volume, covering 7,700 km² of southeast Iceland with ice up to 1,000 meters thick. Active volcanoes lie beneath it, and a national park surrounds the whole cap.

Glacier conditions change rapidly. Never walk on a glacier without a certified guide and proper equipment. Crevasses can be hidden under snow and are extremely dangerous.
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Ice caves accessible Nov–Mar; Jökulsárlón year-round.
Skaftafell, Jökulsárlón, and Höfn along Route 1.
Ice cave tours sell out weeks in advance during winter.
Planning help
Quick answers with safety notes where it matters.