Edithburgh Jetty
Depth is the range from the top of the site to its usual maximum; "recommended cert" is the mainstream-agency level operators usually ask for, not a legal rule. Currents and visibility change daily — treat everything here as planning ranges.
Edithburgh is South Australia's macro cathedral, five meters deep. By day the pylons drip with color and leafy seadragons patrol the seagrass margins; by night the sand switches on, and the jetty produces the region's celebrity lineup on demand: southern blue-ringed octopus flashing warnings, tasselled anglerfish shuffling on their fins, pajama squid buried to the eyeballs, and nudibranchs in absurd variety. Photographers cross the state for it and rarely leave disappointed. The diving itself asks nothing, no depth, no current on a fair day, just patience, a good torch, and restraint around animals that can kill you if handled.
The moment you come for: Blue-ringed octopus and anglerfish at night, leafy seadragons, world-class temperate macro
Topography: Sand, seagrass, and debris beneath a working country jetty
Entry: Steps lead off the jetty on the Yorke Peninsula's heel; conditions are best with westerly protection and a slack sea.
Know before you splash
Hazards: Blue-ringed octopus are deadly if handled; fishing line and night navigation are the other cautions.
Conservation: Look, light, and leave: no handling of dragons, octopus, or anglerfish, however good the shot would be.
Who you'll meet
Blue-Ringed Octopus
Frogfish
Leafy Seadragon
Nudibranchs
Seahorses
For photographers
Wide angle: ★★☆☆☆ · Macro: ★★★★★ — editors' 1–5 rating of what this site gives each style of shooting