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Log This Dive

Northern Arch

Northern Arch is quintessential Poor Knights. We love this site for its sheer drama, an enormous cut through the island that often funnels current, bringing in the bigger stuff. Dropping into the sun-dappled entrance, you're immediately hit with the scale of the place. The walls are encrusted with sponges, a painter's palette of orange and purple against the dark rock. Look up, and schools of blue maomao swirl overhead, so thick they almost blot out the light filtering down. We've seen kingfish here that make you question your depth perception, cruising through with a casual power, particularly in summer. Black stingrays often settle on the sandy bottom inside the arch, sometimes joined by the occasional eagle ray gliding past. The arch itself bottoms out around 25m, but the northern side just keeps sloping away, hinting at deeper adventures if you’re equipped for it. We always suggest keeping an eye out into the blue beyond the arch; that’s where the real surprises often show up. It’s a site for divers who appreciate a grand stage and aren’t afraid of a bit of movement in the water, offering those unforgettable moments where the ocean truly feels wild.