In this story
Katpana confuses people the first time they see it, because a desert at nearly 2,300 metres, ringed by snow peaks, doesn't match what "desert" is supposed to look like. I spent most of my visit at the edge where the dunes meet cultivated land, because that boundary is the actual story.
Skardu's valley is high-altitude and low-rainfall, which is what makes a cold desert possible here at all, sand accumulated by wind action rather than the heat-driven deserts most people picture. A few hundred metres from where the dunes end, irrigation turns the same ground green. That line, sand on one side, crop rows on the other, mountains behind both, is a more honest picture of the place than a dune photographed in isolation, which could be mistaken for somewhere with a completely different climate.
Understand what you're looking at before you frame it
A cold desert forms differently from a hot one, and it's worth getting that distinction right if you're going to describe the landscape to anyone. Wind, altitude, and low precipitation do the work here, not heat. If you're not certain of the specific mechanism, describe the visible contrast, sand, snow peaks, cultivated valley floor, rather than reaching for a scientific explanation you're not sure of.
Timing changes the sand more than you'd expect
Early morning and late afternoon light rake across the dune surfaces and pick out ripple patterns that flatten out completely under midday sun. If you only have one window to visit, favour the edges of the day. I went back a second time in late afternoon after seeing how flat everything looked at noon, and it was worth the return trip.
Respect the ground itself
The dune surfaces are more fragile than they look and foot traffic changes them, so stick to established paths where they exist rather than cutting your own line across a ridge for a photo. The cultivated land beside the desert is someone's working ground, not a scenic extension of the dunes, so keep off planted rows and ask before walking near an active irrigation channel.
Don't let the strangeness of the place invite exaggeration
It's tempting to describe Katpana in the most dramatic terms available, because a desert next to glaciers is genuinely unusual. Let the actual contrast do that work instead of overstating the scale or comparing it to somewhere much larger. The honest version, a modest stretch of cold desert against a genuinely striking mountain backdrop, is interesting enough without embellishment.
A local guide walking a small group ahead of me stopped to point out tracks crossing one dune face, something small, a fox or a hare, he wasn't fully certain which, and said the animals move through at night when the sand holds less heat. I hadn't thought about the desert having any wildlife at all until that moment, assuming from a distance that it was simply an empty stretch of sand between the cultivated ground and the mountains. That's worth remembering if you're describing Katpana to someone else: even a landscape this stark isn't lifeless, it just keeps its activity to hours most visitors aren't there to see.