Rainbow Mountain from Cusco — Driven to the Viewpoint, No ATV

Moderate to demanding. The path itself is wide and non-technical, but you are walking above 4,600 m, where the air holds roughly half the oxygen of sea level. It is about 3.5 km each way and most people take 1.5 to 2 hours going up. Guides deliberately set a slow pace and stop often.

Yes. Spend a minimum of one to two days in Cusco (3,399 m) before going to Vinicunca. Coming straight from the coast or from Lima and attempting 5,200 m on your first day is the single most common cause of a ruined trip.

April through October is the dry season and gives the clearest skies and the most reliable colours. Between November and March it rains frequently, and fresh snow on the ridge can hide the stripes completely for a day or two.

Yes. Local families offer horses along the route for roughly 70 to 90 soles per stretch, paid directly to the owner in cash. The horse takes you most of the way up; the final few hundred metres to the viewpoint must be walked.

No. The official entrance is 25 soles for Peruvian nationals and 30 soles for foreign visitors, paid in cash at the community ticket post on the day. Bring it in small notes — nobody up there takes cards.

Children from around eight can manage it if they are used to walking, and older travellers do it regularly. For both, hiring a horse for the ascent is worth planning in advance. If you have heart or lung conditions, check with your doctor before booking a day at 5,200 m.

Your guide carries portable oxygen and a first-aid kit and is trained to use both. The standard response is to stop, administer oxygen and descend — descent resolves almost every case quickly. Tell your guide early rather than pushing on quietly.

Yes, basic facilities at the breakfast stop and near base camp. They usually charge 1 to 2 soles, so keep a few coins accessible. There are no facilities on the trail itself between base camp and the viewpoint.