Black Forest (Candi City) is the signature coral forest on Una Una, reached through the Sanctum dive circuit in the Togean Islands. The site is a gentle coral slope and mini-wall with towering temple-coral shapes, lush cabbage coral, and mushroom coral, so the whole dive feels like moving through a living reef forest rather than a simple featureless slope. It suits relaxed scuba divers who want clear water, slow pacing, and a reef that rewards careful buoyancy and close observation of the coral structure.