If we arrive in Olly at 11am, what time is the latest we should attempt to go down i.e. what time does the sun set and it's dark out?
i think it is a bit late to start, given that the days are shorter. You will miss the best time of day on the trail. Best to over night then walk up from town centre.
You should be fine depending on where you start your walk up to Pumarmarca. It's quite a drive to get to the trail. Our group did a 10km walk up and down and were met by our driver and van for lunch and to pick us up at the end of the hike. Remember to plan your route, take lots of water and be prepared to be slower than normal as you are hiking at altitude.
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