Þrándarjökull

Þrándarjökull is a small glacier in eastern Iceland located 20 kilometres (12 mi) to the north east of the Vatnajökull glacier. It had a past measured elevation of 1,248 m (4,094 ft), but the glacier is presently between 950 m (3,120 ft) and 1,200 m (3,900 ft) above sea level.

Ancient ice creaks and groans. It's constantly moving, just too slowly for us to see.

Glacier tours are worth the money. You get crampons, ice axes, and someone who knows where it's safe to step.