floating rock island 3d model

Design a deep-ocean floating rock formation biome for an open-world survival game. Massive stone islands suspended in underwater currents, with vertical drop-offs, cavern openings, and eroded limestone-like rock textures. Undersides taper into jagged formations and broken rock spines. The top surface contains sparse alien vegetation adapted to low light conditions. Mood: mysterious, slightly ominous, ancient ecosystem untouched by civilization.