Pimpernel Rock

Pimpernel Rock, Solitary Islands

By ScubaDownUnder Team · 2026-06-19

Forty nautical miles off the New South Wales coast, a mountain rises out of the deep and stops just short of the surface. Pimpernel Rock is a submerged pinnacle in the Solitary Islands, a long way from anywhere, swept by current that can be fierce enough to call off the dive, and ringed by some of the biggest marine life in the state. Grey nurse sharks hang in its cavern, kingfish and mulloway school over its flanks, and in the warmer months manta rays cruise through. It is an advanced dive, an exposed and committing one, and for experienced divers it is among the most exhilarating in northern New South Wales.

Pimpernel Rock sits within the Solitary Islands Marine Park, a stretch of coast where the warm East Australian Current meets cooler southern water, mixing tropical and temperate species in a way few places match. The rock itself is the tip of an undersea mountain rising from a base around forty metres to within about twelve of the surface, with an enormous cavern, some twelve metres high and fifteen wide, cut through the main structure deep in its heart. It is reached only by boat, on a long run from Coffs Harbour or the small town of Wooli, and the journey and the conditions together keep it a site for the committed.

This is big, three-dimensional pinnacle diving. Divers drop down the structure, which falls away on all sides into blue, working the walls and ledges where the marine life concentrates and, conditions allowing, exploring the great cavern through the centre of the rock at depth. The pinnacle's top sits within recreational range, but the site rewards divers who can manage depth and current to reach its best features. The defining factor is the current: Pimpernel is exposed and offshore, and the flow can run hard enough that getting down to the rock is the crux of the dive. On a good day it is a drift past walls thick with life; on a bad one it simply cannot be dived.

Pimpernel earns its reputation with sheer biomass. Critically endangered grey nurse sharks gather around the deeper cavern, one of the reasons the site is so prized, and big schools of kingfish and mulloway sweep over the structure. The marine park's position on the tropical-temperate boundary means the cast shifts with the season: manta rays and tropical species arrive on the warm current through the warmer months, while temperate fish hold year-round. Turtles pass through, gorgonian fans and soft corals decorate the walls, and pelagic schools mass in the current. For divers who make it down, the density of large animals in clear, blue offshore water is the whole point.

Pimpernel Rock is committing diving and the conditions decide everything. Visibility is usually good, often fifteen to thirty metres in the clear offshore water, but the current is the variable that makes or breaks the trip, ranging from a manageable drift to a flow strong enough to abort the descent. Water temperature is mild for New South Wales, running roughly nineteen to twenty-five degrees as the East Australian Current pushes warm water down the coast, so a 5mm wetsuit suits most divers. The site is forty nautical miles offshore and fully exposed, so trips depend entirely on calm weather and run only when the forecast allows. A surface marker buoy and confident drift-diving skills are essential, and the depth and the cavern mean gas planning and overhead awareness matter.

The great cavern is the heart of the site for trained divers, a cathedral-sized space deep in the rock where grey nurse sharks shelter, though it is an overhead environment that demands the right experience and care. Beyond it, the walls and ledges reward divers who can work the current, and the offshore location means encounters with passing pelagics are always possible. Pimpernel is often combined with the nearby North Solitary Islands on the same trip, so a day out can pair the pinnacle with the anemone-covered reefs that make the marine park famous.

Pimpernel Rock is not a dive to be taken lightly, and that is exactly why divers covet it. A submerged mountain far offshore, guarded by current and crowned with grey nurse sharks, mantas and pelagics, it delivers the kind of big-animal diving that usually requires a tropical liveaboard, within reach of the New South Wales coast. For experienced divers who catch it on the right day, it is unforgettable.

## Site Access and Logistics

Pimpernel Rock is a boat dive only, reached on a long offshore run of around forty nautical miles from Coffs Harbour or the nearby town of Wooli. There is no shore access, and the trip depends entirely on calm weather, so operators run it only when conditions allow. Guided charters supply gear, guiding and the local knowledge that diving an exposed offshore pinnacle requires.

This is firmly an advanced site. The depth, the offshore exposure and above all the current, which can be strong enough to prevent a descent, mean Advanced Open Water certification with solid experience in current and deeper water is the practical minimum, and the deep cavern is an overhead environment for suitably trained divers only. A surface marker buoy and confident mid-water deployment are essential, and a 5mm wetsuit suits the warm-current water. As a grey nurse aggregation in a marine park, the sharks are protected, and divers are expected to keep their distance and let them move freely.

Charters to Pimpernel Rock and the Solitary Islands run from Coffs Harbour and Wooli, including through [Jetty Dive](https://jettydive.com.au/diving-the-solitary-islands/).

## Sources

- Jetty Dive, diving the Solitary Islands: [https://jettydive.com.au/diving-the-solitary-islands/](https://jettydive.com.au/diving-the-solitary-islands/) - Jetty Dive, dive sites of the Solitary Islands Marine Park: [https://jettydive.com.au/dive-sites-solitary-islands-marine-park/](https://jettydive.com.au/dive-sites-solitary-islands-marine-park/) - Parks Australia, Solitary Islands Marine Park: [https://australianmarineparks.gov.au/parks/temperate-east-marine-parks-network/solitary-islands-marine-park/](https://australianmarineparks.gov.au/parks/temperate-east-marine-parks-network/solitary-islands-marine-park/) - Professional Dive Services, Wooli, Pimpernel Rock and the North Solitary Islands: [https://www.professionaldiveservices.com.au/wooli-pimpernel-rock-and-the-north-solitary-islands/](https://www.professionaldiveservices.com.au/wooli-pimpernel-rock-and-the-north-solitary-islands/) - Brisbane BSAC, Pimpernel Rock and the North Solitary Islands: [https://www.brisbane-bsac.com/news/pimpernel-rocknorth-solitary-islands/](https://www.brisbane-bsac.com/news/pimpernel-rocknorth-solitary-islands/)