Manuelita

Manuelita is the islet guarding Chatham Bay and the closest thing Cocos has to a house reef - which at Cocos means hammerheads over the deep side by day and one of diving's great spectacles after dark. On the night dive, hundreds of whitetip reef sharks pour over the coral garden in a hunting wave, shouldering into crevices after sleeping fish while divers' lights track the melee. Tiger sharks, now regular at Cocos, cruise Manuelita's sand edge often enough that guides brief for them as a matter of course. The shallow garden also serves as the trip's gentlest dive, thick with morays and marbled rays.

اللحظة التي جئت من أجلها: The whitetip night hunt, regular tiger shark passes, an easy coral garden in a hard place

التضاريس: Coral garden on the protected side, boulders and wall on the exposed side

التيار: The sheltered inside works in most conditions; the deep outside corner catches flow and sharks.

المخاطر: Night-dive task loading amid large excited animals; tiger shark protocol per the guides.

الحفاظ على البيئة البحرية: Night dives run under park protocols; lights and diver numbers are managed to limit disturbance.

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.