The Kiama Gutter is a neat one-way shore dive around Blowhole Point, beginning beside the ocean pool and ending inside Kiama Harbour – so the finish is sheltered even if the entry needs calm conditions. It is documented on McFadyen's site as Kiama Point.

The dive starts in a pebble-floored gutter about 5 m deep. After around 20 m of swimming the bottom slopes to 8 m and then drops over a wall to 11 m. Beyond the wall is a landscape of valleys and ridges of pink and white rock separated by sand patches, with relatively little growth compared with the sponge-covered reefs at Bass Point. Continuing north, divers reach the sand edge at about 16.5 m, where kelp grows along the reef margin, after 14–15 minutes. The return route follows the indentations of the reef south-west towards the harbour and exits through a small bay with a pebbly bottom.

Life includes bull rays on the sand, Port Jackson and crested horn sharks in the rock valleys, moray eels, schools of mado and sea stars. McFadyen reported visibility of over 20 m on his dive, which is achievable in winter westerly weather. The route is straightforward if divers stay close to the wall and reef, and it provides a pleasant alternative to the more exposed Afghan Reef on the other side of the point. Keep clear of boats using the harbour on the final leg, and be careful on the large pebbles at the exit. Blowhole Point's facilities make it an easy base for a day of shore diving.

Take the first Kiama exit off the Princes Highway from Sydney and follow the signs through the main street to the Blowhole. Park near the toilet block beside the ocean swimming pool on Blowhole Point. Walk to the right-hand side of the pool, where a ledge provides a comfortable entry – sit and put fins on before sliding in.

The dive finishes in the harbour, a short walk back to the car.

Kiama's reefs face east and are exposed to swell from the north-east round to the south-east; a southerly swell wraps into the northern side of Blowhole Point less than an easterly does. Shore entries over the rock platforms need a swell under about 1 m and preferably a low-to-mid tide with a predictable surge cycle. North-easterly sea breezes build on most summer afternoons, so dive early.

Visibility is typically 8–15 m, sometimes 20 m in winter westerly weather, and drops after heavy rain and big seas. The route ends in Kiama Harbour, so the exit remains usable in moderate swell, but the pool-side entry requires calm conditions.

Enter beside the pool, follow the pebble gutter north-east at 5 m, then drop over the wall to 11 m. Head north through the rock valleys to reach the sand edge at about 16.5 m after 14–15 minutes, then turn south-west following the reef indentations. After 25+ minutes head towards the harbour and exit through the small bay on a rising sandy, pebbly bottom.

No local operator; dived independently and by visiting clubs and Shellharbour/Wollongong dive shop groups.