One of my favorite things about watching the Olympics this year has been the usage of FPV drones during downhill events.
The skill on display to maneuver the drone, keep the subject in frame, and keep it cinematic was almost as impressive as the athletes themselves, and added a lot to the immersiveness of the events.
So Claude and I hacked up a simulator this morning. My kids love it!
https://imjasonh.github.io/droneski/
Bug Tux Racer vibes btw! I think adding some music and perhaps snowfall could make it even more immersive
edit: and i think you could easily make it feel more detailed by adding a texture for the snow,and increasing the resolution of nearby terrain by modulating it with some precomputed fractalized perlin noise. So basically "free" detail that only exists in the rendering logic, does not influence the complexity of the heightmap. and perhaps you could replace the trees with sprites that are images of real trees (stylized to the visual style you're going for)