MC Seed Map overview of Java 1.21.5 seed 7287925236625477741 showing the spawn coastline and nearby biomes

What stands out in A three-level lush cave beneath the badlands

The screenshot helps place the badlands within a much larger travel region, but a flat biome map cannot show the cave's vertical layers. Treat the surface colors as a route-planning aid and the three-level description as an underground claim that still needs a direct visit.

How I would approach this world

A good project here would connect the mesa surface to the lush cave with a controlled descent, minecart line, or open shaft. Badlands provide terracotta and exposed gold while the cave can supply moss, clay, glow berries, and a sheltered build space, giving the location practical material variety.

Before settling into the world

Use Java 1.21.5 and inspect the cave from several Y levels. Check whether the layers are genuinely separated, how safely they connect, and whether the most attractive chambers remain intact once normal cave openings and water flows are visible.