Mushroom Rock, situated within the Shoalwater Islands Marine Park near Point Peron, is one of Rockingham's premier snorkelling destinations. This remarkable limestone formation has been sculpted by centuries of wave action into captivating overhangs, small caves, and swim-throughs that create an underwater playground just metres from shore. The crystal-clear, shallow waters are well-sheltered, offering excellent visibility and a safe environment for snorkellers of all levels. Located within Perth's stunning coastal backyard, the site sits among lush seagrass meadows teeming with marine activity, making it a must-visit spot for anyone exploring the marine parks south of Perth.
Mushroom Rock (Rockingham)
BeginnerMAYBE
MAYBE
Fair. Experienced snorkellers only.
Showing last known conditions
Wave Height 0.6 mSwell Period 11 sWind Speed 0.6 knPrecipitation 0.7 mmTidal Phase ebb
Last evaluated
The spot
Community-maintained
Community contribution: submitted by Daniel
Know before you go
Logged by the community, confirmed by mods
Low risk: Sharp limestone rocks
The eroded limestone formations can have sharp edges; care needed when entering and exiting the water and while navigating swim-throughs.
Low risk: Boat traffic
The area is within a popular marine park with some boat activity; snorkellers should remain vigilant and stay clear of vessel channels.
Low risk: Changing tides
Tidal flows can affect water conditions and visibility, particularly around the swim-through caves.
Wildlife Guide
No wildlife notes for this spot yet.
Gallery
1 photo from the community
Getting in
Shore entry
Entry
Mushroom Rock is located at Point Peron in Rockingham, approximately 45 minutes south of Perth. Follow Rockingham Beach Road to Point Peron Road, then continue to the Point Peron carpark. The snorkelling site is a short walk from the carpark along the limestone headland.
Parking & facilities
Point Peron carpark provides free parking. Arrive early on weekends and summer holidays as the lot fills quickly.
parkingtoiletspicnic_tables
No entry fee. No permit required for snorkelling.
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About this data
- Conditions last evaluated
- Spot data last updated
- Data sources
- Open-Meteo (marine & weather conditions), tide predictions via UTide, community contributors (descriptions, hazards, marine life).
- License
- Spot content licensed under CC BY-SA 4.0. How's the Spot is open source.
Weather & swell ┬╖ Open-Meteo marine & weather APIs Tides ┬╖ UTide harmonic analysis Sea & safety ┬╖ community reports