Normanville does not appear in the classic dive guides, but a 2017 report from the Marine Life Society of South Australia identified the shallow sand and seagrass off the Normanville Surf Life Saving Club as a syngnathid hotspot of extraordinary richness. The area is roughly a hectare, with a maximum depth of about 5 m and most pipefish at 2-3 m, and members have recorded at least 20 species of syngnathid there – two seadragon species, a seahorse and a long list of pipefish, many of them rare or data-deficient. Among them are the widebody pipefish and Verco's pipefish, which the author notes was essentially unknown outside Pelican Lagoon on Kangaroo Island until found here.

The report describes the site as having no known equivalents globally for its syngnathid diversity and endemism, and says that on a good summer dive observers typically find five or six species. This is a dive for patience and good eyes rather than scenery. The seagrass meadows look uniform at first glance, but slow searching among the blades and sand patches reveals the camouflaged animals.

Macro photographers and naturalists will find it outstanding; divers expecting reef or structure may be disappointed. The Normanville jetty nearby adds a little structure, with the usual jetty-pile life. The site suits snorkellers and divers of any level on calm days, and it is especially good for photographers.

Please treat it gently: stay off the bottom, avoid touching seagrass, never handle syngnathids, and limit flash on individual animals. Recording finds on iNaturalist helps the local research effort.

Normanville is about 1 hour 10 minutes south of Adelaide via Main South Road. Park on the foreshore near the Normanville Surf Life Saving Club and the jetty (the Normanville Jetty Holiday Park is adjacent). Walk a short distance across the sand and enter from the beach.

The seagrass area is close to shore in 2-5 m, so no long swim is needed.

A shallow, west-facing beach site: calm conditions after easterly winds are essential, as any westerly or south-westerly swell stirs the sand and makes finding small animals impossible. Summer is best, both for water temperature and for syngnathid numbers. Dive early before the sea breeze.

Visibility drops after rain when the Bungala River flows into the bay.

Enter near the surf club and swim slowly over the seagrass at 2-3 m, searching the blade tips and sand patches for pipefish, seahorses and seadragons. Work a grid pattern rather than a straight line, and stay shallow – most pipefish are at 2-3 m.

No commercial operator; surveyed by Marine Life Society of SA members; dived independently.