This is a beautiful hike that’s a mercifully short drive from Huaraz (details below). The trail is only 3km but it’s steep. The first section is up the ridge of a moraine, without any switchbacks. The second section is across a hillside that’s less steep.

The third section is mostly climbing up the rocks that hold Churup Lake in place. There are chains on several parts of the last bit, which makes the hike not suitable for people who are uncomfortable with heights and exposure.

Churup Peak, which looms above the lake, is a very technical climb and not something to be attempted without ropes and climbing gear. The lake is at 4450m (14,600ft) and the peak is at 5493m (18,022ft).

If you have an extra hour for a bit more hiking from Churup Lake, follow the trail around the side to Churupita (below). It’s a fun little bonus hike up to a perfectly crystalline cirque.