Anime crater landscape with a river and a tree HD Wallpaper

A vast, circular crater dominates the landscape, with steep, rocky walls. Inside the crater, a serene lake or river winds through a grassy plain, with a single tree on a small island. Mist or fog hovers near the bottom of the crater, and two small figures can be seen walking on the rim. The sky above is a gradient of blue and pink, with scattered clouds, suggesting either sunrise or sunset.