The wall has rooms.
Between Anchor Wreck and the Sandy Slope, the Menjangan wall develops a series of caves and grottoes. They're not deep, not technical — just wide overhangs and short tunnels, all swimmable, all naturally lit.
Each chamber has its own ecosystem: sponges on the ceiling, sea fans at the mouth, glassfish in clouds inside. Photographers love the silhouette shots — diver's torch in the back of a cave, blue water framing the entrance.
"Don't rush the caves. Each one is a tiny aquarium."
Easy navigation — the wall does the work. Hover at each cave for a few breaths, let the macro come to you. Mandarin fish on the wall above the caves at dusk.