Broken Rock

Broken Rock is named for the fissure that splits the pinnacle end to end: a canyon a few meters wide and up to ten deep, its walls upholstered with sea fans and whip corals that sway as the tide breathes through. Swimming the gap single file, with an eye on surge and fins off the walls, is the signature moment. Around the outside, terraces hold morays, turtles, marbled grouper, and drifts of anthias, and the sand at the base is worth scanning for rays. Photographers burn entire dives inside the crack.

اللحظة التي جئت من أجلها: The fan-lined canyon swim; turtle and moray terraces around the rim

التضاريس: A thila cleaved in two by a narrow canyon, walls hung with fans and whip corals

التيار: Current across the canyon mouth decides whether the split can be swum; guides check before committing groups.

المخاطر: Surge in the canyon; overhead-feeling terrain in the narrowest sections.

الحفاظ على البيئة البحرية: The canyon's fans are fragile and slow-growing: perfect trim or stay out of the split.

نيتروكس: يستحق الأمر هنا: الملفات الشخصية تقع في النطاق الذي يُمدّد فيه الهواء المدعّم (نيتروكس) وقت الغوص دون توقف تمديدًا ملموسًا، مع التدريب اللازم لاستخدامه.