Meet the site
The jetty at Second Valley is small, but it and the seagrass around it have become one of the best-known leafy seadragon snorkel sites in South Australia. Guided snorkel tours bring participants to the jetty and seagrass beds in water no deeper than 5 m, and describe the site as renowned for the leafy seadragon along with blue devils, weedy seadragons and colourful fish. The Federation notes that the jetty is also used for dive training, and that its stairs have been repaired with an extension to support low-tide access. Underwater, the piles carry algae, sponges and small invertebrates, and the sand and seagrass around the jetty hold the camouflaged animals that people come for. Leafy seadragons drift among the weed and seagrass edges, mimicking the fronds, and finding one takes a slow, patient search. Weedy seadragons, pipefish, small cuttlefish and various wrasse are also seen, and blue devils sit in any rocky holes nearby. Being shallow and sheltered in easterly weather, the jetty is an excellent option for families, snorkellers and newly certified divers, and a good warm-up before the headland and caves or a swim to Lasseter's Reef. The stairs make entry and exit easy compared with the rock entries nearby. Seadragons are protected in South Australia: keep a respectful distance, never touch or chase them, and avoid lingering with bright lights or flash. Keep clear of anglers on the jetty. The site is exposed to northerly and westerly swell, so check the forecast before driving down. On a calm summer morning, though, a slow hour here can be as rewarding as a far more demanding dive.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Second Valley Jetty is recorded as Jetty/Pier in Fleurieu Peninsula & Victor Harbor. The listed access is shore. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
- Lines and obstructions
- Discuss any known entanglement concerns and the suitability of the planned area.
- Water movement
- Ask how swell and local exposure affect the proposed entry, exit and route.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Second Valley Jetty suitable for my certification?
The record lists Snorkel/Any. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Second Valley Jetty through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Leafy seadragons, weedy seadragons, pipefish, blue devilfish, wrasse, cuttlefish, small reef fish, seagrass
Location
Short jetty in the Second Valley cove with repaired stairs extended for low-tide access, over sand and seagrass in less than 5 m; a leafy seadragon snorkel site and dive training spot.
Facilities nearby
Car park beside the jetty, public toilets and changing room (no drinking water), caravan park and cafe nearby.
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
glamadelaide.com.ausdfsa.netthediveshack.com.auRecord updated 27 Sept 2026. Source claims are being reviewed.
