A broad rosette of sand ridges spreads across the seabed, with a tiny spotted pufferfish beside one of its near channels. Fine ripples gather at the center before opening into deeper radial troughs. The outer ridges are uneven, some branching and others softened along their edges. This irregularity keeps the pattern connected to the loose sand around it. Small shell fragments and scattered grains sit in the grooves, while the fish’s translucent fins stir a faint trace of sediment.

The view looks down at an angle, so the near ridges appear larger and the farther part of the formation recedes through blue-green water. Beyond its edge, ordinary ripples, pebbles and sparse marine plants return the scene to a quieter seabed. Filtered daylight catches the tops of some ridges and leaves the channels darker, revealing their shallow relief. The small fish remains in scale with the much larger construction. That contrast is the striking detail: a modest animal beside an intricate shape that fills most of the surrounding view.