Work on Austinmer Pools should be completed by the holiday season.
A spokesperson for Wollongong Council says a number of 5-tonne, pre-cast panels have been installed on sea-facing walls of the Northern pool, and this week, more will be put in place.
Workers have had to wait until tides, sea and swell conditions were right to continue the work.
A concrete plug has also been poured on the eastern wall of the northern pool, and the central concourse and the eastern wall of the northern pool have been cleaned.
The Northern pool is closed while the work is underway but the Southern pool remains open to swimmers.
The Council spokesman says the work is set to be competed by Christmas They have also offered their thanks for the community’s patience while the essential repair works are carried out.