The Inner Bommies form the shallower half of an extensive rocky bommie system scattered off Norah Head, sitting in a comfortable 15-20 m that keeps no-decompression time generous compared with the area's deeper reefs and wrecks. Local divers sum the site up succinctly as total fish soup — a description that captures both the density of fish life stacked around the individual bommie heads and the slightly chaotic, all-action character of the diving here compared with the more structured wall dives elsewhere on the coast. Rather than one defined route, the Inner Bommies present as a scatter of individual rock structures rising from the seabed, each acting as its own small fish-aggregation point.This makes the site a natural training and comfort-building ground for divers stepping up from shallower shore dives into genuine boat-based reef diving, since the shallower depth range keeps bottom time generous while still delivering the schooling-fish spectacle the wider Norah Head bommie fields are known for.

Expect large aggregations of common temperate reef fish moving between bommies, with the odd ray or shark cruising the sand channels separating the individual structures. Because it sits within the same general bommie field as the deeper Outer Bommies, club boats and charters often dive the two as a pair, using the Inner Bommies as the shallower, longer, more relaxed of the two dives and the Outer Bommies as the deeper, shorter highlight dive later in the day. The bommie tops also carry a good spread of sponge and gorgonian growth for photographers to work with between the fish passes, and the shallower depth here means less pressure to rush a shot before ascending than at the deeper sites further along this coast.

Reached by boat from Norah Head or Terrigal Haven; part of the extensive Norah Head bommie fields dived by Terrigal Underwater Group and Norah Head Divers Depot.

These offshore sites need a settled weather window with under about 1.5 m swell and light winds, launched from either the rough Norah Head beach ramp or from Terrigal Haven depending on which operator is running. Visibility is generally best in autumn and early winter once the summer's plankton blooms have cleared and before the coldest, greenest winter water sets in, though the East Australian Current can bring clear, warm water south at almost any time of year. A recent blow or heavy rain (Hunter and Tuggerah Lakes runoff) reduces visibility for several days.

Descend onto the bommie tops around 15 m, work between the individual bommies and the fish schools holding over them, staying shallow relative to the Outer Bommies, before ascending for a safety stop.

Terrigal Underwater Group (TUG) club boat and members' private boats dive these sites regularly; no standing recreational charter runs to the deeper Norah Head wrecks, which are mostly visited by technical-minded club divers on calm-weather trips.