People who paraglide often launch (and land) on skis and can then use thermals to ascend above their launch site. No-one's flying to 11,000m though!

(The highest recorded paraglider flight was 10,054m – unintentional, got sucked into a cumulonimbus cloud updraft - also lost consciousness).

My friend skis make it easier to use your parachute https://youtu.be/3CDyQXtBGBw?si=YMXZOqvkCLaaLamy&t=1457