Silver Drummer Wall is a modest reef wall off Bateau Bay recorded by Muddy Puddle Diver, the Terrigal diving blog that documents local sites. The wall runs roughly north-east, with the top at about 13 m and the base at about 20 m, and the blog frankly describes the top as barren. It is not a headline dive, but it is part of the Bateau Bay reef system that also includes Anniversary Reef Wall, Bonito Reef, Foggy Reef and The Pinnacle, and it fills out the picture of how varied that stretch of seabed is.

The name points to the silver drummer (Kyphosus sydneyanus), a big, deep-bodied herbivore that grazes algae on shallow reefs along the NSW coast and often gathers in loose schools along walls and in whitewater. On the Central Coast they share the reef with luderick, rock blackfish, silver sweep and yellowtail, and a wall like this, with a grazed, low-growth top and more cover along its face, is typical of their habitat. The better diving is along the face and base rather than on top.

Ledges and undercuts shelter bullseyes, one-spot pullers and red morwong, wobbegongs rest on the sand, and small invertebrates and nudibranchs live in the cracks. Depths are comfortable, so bottom times are long and the site suits Open Water divers or anyone wanting a shallow second dive. Treat Silver Drummer Wall as a local-knowledge site for regular Terrigal divers wanting something different rather than a destination in itself.

Ask the skipper, choose a calm day, and plan a simple out-and-back along the wall.

All boat dives in this area launch from the Terrigal Haven boat ramp at the southern end of Terrigal Beach, tucked behind The Skillion headland. From the Central Coast Highway follow Terrigal Drive into Terrigal, then Kurrawyba Avenue and Terrigal Esplanade to The Haven, where there is a paid car park beside the ramp; Pro Dive Central Coast's shop is a short walk away and gear is loaded on the ramp or the adjacent beach. Private boats need a ramp with good parking early on weekends as the car park fills by mid-morning in summer.

The wall is off Bateau Bay, 12-15 minutes north of The Haven. No public mark is published; it is dived with Terrigal operators or clubs.

Terrigal's offshore reefs are open to the Tasman Sea and are dived only when swell is below roughly 1.5 m; a north-east sea breeze building through the afternoon in summer and strong southerlies after a front are the usual reasons trips are cancelled, so morning departures are the norm. The Haven boat ramp is sheltered by The Skillion but the run out past the headland can be lumpy in a south-easterly. Visibility is best in late summer and autumn when the East Australian Current pushes warm blue water inshore, and worst after heavy rain when Terrigal Lagoon, Wamberal Lagoon and Avoca Lagoon open and stain the inshore water.

Winter water is cooler (around 15-17 °C) but often clear.

Drop to the base of the wall near 20 m and follow it along its length, checking under ledges for silver drummer and other fish, then return along the top at 13-15 m.

No regular operator; occasionally dived by Terrigal Underwater Group and local private boats.