Double Boat Dive: Ulladulla’s Walls, Caves and Grey Nurse Encounters

Off the sheltered breakwaters of Ulladulla on New South Wales’ South Coast, the Double Boat Dive delivers two distinct windows into an underwater landscape forged by limestone shelves and basalt outcrops. Operating as a five-hour boat trip from a central meeting point at 6 North St, Ulladulla NSW 2539, this outing sends certified divers to walls, bommies, arches and caves chosen by local guides to match conditions and ability. Expect dramatic vertical escarpments where kelp and soft corals cling to basalt faces, bommie gardens that swell with wrasse and sweepers, and narrow swim-throughs that reward cautious navigation. Visibility on calm days can exceed 15 metres; currents and swell shape each site’s character, so guides tailor drops and ascent plans accordingly. Guides on the Double Boat Dive balance guided and unguided options: experienced divers often run their own bottom time while staff remain nearby to manage drift entries, staging and safe exits. The boat stays with divers at the surface to recover groups and provide emergency support. Briefings review hand signals, depth limits and environmental protocols; note that Open Water certification and presentation of your certification card are required. Marine life is plentiful: the South Coast supports grey nurse sharks at a number of deeper cleaning stations, and divers may also encounter schools of sweepers, wrasse, cuttlefish and nudibranchs on bommies and in crevices. Encounters with protected species are observed at a respectful distance according to local regulations. Who should book? Open Water certified divers comfortable with moderate currents and basic navigation will extract the most value; less experienced divers should choose guided dives. Bring a dive computer, exposure suit suited to seasonal water temperatures, surface marker buoy, and your certification card. Arrive fifteen minutes early to complete waivers and rig gear. Photography opportunities are excellent: wide-angle frames capture the interplay between blue water and vertical walls, while macro lenses reveal nudibranchs and gobies tucked into bommie crevices. Early morning light and calm seas produce the best colour; overcast days can actually reduce backscatter for close work. After the water, Ulladulla’s small harbour town has cafés, a working wharf and seafood options a short walk from the dock. Operators emphasize low-impact diving: pack out trash, avoid touching reef life and follow diver briefings so this stretch of the South Coast stays healthy for future trips. The small-group cap (six divers per run) makes for personalised attention from instructors and captains, and it means guides can select sites that maximise sightings and manage drift profiles. Conditions are weather-dependent; the itinerary can change on the day to prioritise safety. Booking through the operator’s online link secures a spot - plan for a half-day commitment and leave room afterwards to explore Ulladulla’s foreshore and relax.