Meet the site
Bicton Baths is Perth's best-known river macro site and a favourite night dive. The river baths and jetty on the Bicton shore, opposite Point Roe, sit at a narrowing of the Swan where tidal flow brings food to a surprising variety of estuarine animals. Depths run from the shallows to about 15 m further out.
The main attraction is seahorses. Western Australian seahorses are found on the weed, jetty pylons and debris, and the nearby wrecks of the ALC40 and the Gay Dragon are among the most reliable places in the river to see them. Nudibranchs, sea anemones, blennies, porcupinefish, bream, yellowtail grunter, gobies, prawns and crabs are also common, and at night octopus and squid hunt along the bank.
The bottom is fine silty mud that is very easily disturbed, so good buoyancy and a slow pace are essential. Visibility changes with the tide, from about 6 m to under 1 m. Currents are nearly always present and strong away from shore, which is the main reason to stay close to the bank.
Bicton Baths suits Open Water divers, macro photographers and night divers, and it is a good introduction to river diving. It is one of the few Perth sites that can be dived when both the northern and southern coasts are blown out.
River temperatures swing more than the ocean: about 22–26 °C in late summer but as low as 13–15 °C in winter, when a 7 mm suit or drysuit makes a long dive more comfortable. Rinse gear well afterwards, as the estuary water is often high in organic matter.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Bicton Baths (Swan River) is recorded as Freshwater Lake/River in Perth. 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.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
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 Bicton Baths (Swan River) suitable for my certification?
The record lists Open Water. 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 Bicton Baths (Swan River) 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
West Australian seahorses, nudibranchs, sea anemones, blennies, porcupinefish, black bream, yellowtail grunter, gobies, prawns, crabs, octopus, squid
Location
River bathing area and jetty on the Bicton shore of the Swan River, a popular night and macro dive known for seahorses, in 2–15 m.
Facilities nearby
Foreshore car parks, toilets and picnic areas at Bicton Baths / Quarantine Park. Air fills in Fremantle.
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
marinelife.org.audivingwawrecks.comdivingwawrecks.comRecord updated 26 Sept 2026. Source claims are being reviewed.
