In reply to UKC/UKH Articles:
I am quite disappointed that you completely neglect the real crags on Mars, mentioning some peak-baggers' mild uphill slogs instead. Any reasonably fit lawyer or dentist with enough disposable income could walk up these, especially guided!
It comes to mind if you aren't keeping the gems hidden for the very prestigious FAs in some RockFax guide already in the making?
Obviously, the best crags are in the canyons and the chaos terrains. Noctis Labyrinthus, Aureum Chaos and other deep canyons must surely offer the best climbing on Mars. Some more than 1km deep, with steep sides, ridges and buttes:
https://en.wikipedia.org/wiki/Aureum_Chaos#/media/File:24807buttetop.jpg
The same goes for the Moon. Wouldn't the most coveted climbs be the steep impact crater walls near the poles, especially given their extreme cold and darkness? Temperatures of down to -240 °C might prove difficult even for the next generations of Polish winter climbers and Simone Moros of the future!