Bluebottle Infestation at Maroubra Beach: Swimmers Urged to Stay Cautious

Thousands of bluebottles have washed up on Maroubra Beach, forcing many swimmers to relocate while others braved the waters despite the risk of painful stings. Strong onshore winds over the weekend carried masses of the stinging jellyfish onto the shoreline, covering the sand in clusters of blue.

Maroubra Beach bluebottles — *Photo Credit: Lynne Oldfield/Facebook*

Bluebottle Invasion Hits Maroubra Beach

Beachgoers at Maroubra were met with an unexpected challenge as thousands of bluebottles washed ashore over the weekend. The sudden influx was attributed to onshore winds pushing colonies of the stinging jellyfish onto the sand.

Sydney man Greg Tannos, who was among those stung, described the sensation as “going into an electric shock in the water and then it keeps getting worse.” Despite the risk, some swimmers still chose to enter the ocean, while others moved to alternative locations.

Randwick Lifeguards confirmed that while they do not close beaches due to bluebottles, warning signs were placed around flagged areas to alert beachgoers.

Understanding the Bluebottle Problem

Bluebottles, easily recognised by their blue gas-filled sac, are a common nuisance along Australia’s east coast. They are not capable of independent movement and rely on ocean currents and winds to drift. When winds exceed 30 km/h, entire colonies can be pushed towards specific beaches, as seen at Maroubra.

Experts estimate that up to 30,000 bluebottle stings occur annually across Australia, though none have been fatal. The stings cause intense pain and irritation, often leaving red welts on the skin.

Dr Lisa-ann Gershwin of the Australian Marine Stinger Advisory recommends rinsing the affected area with seawater first before applying ice or hot water to reduce pain. Freshwater should be avoided initially as it can worsen the sting by triggering the release of more venom.

Maroubra Beach — *Photo Credit: Lynne Oldfield/Facebook*

Treatment and Prevention of Bluebottle Stings

In the event of a bluebottle sting, the following steps are recommended:

Monitor the casualty while offering comfort and reassurance.
Pick off any remaining tentacles.
Remove any ‘invisible tentacles’ with a copious amount of seawater.
Immerse the affected area in hot water or cover it with hot running water (as in a hot shower) for at least 20 minutes to neutralise the venom proteins.
Alternatively, apply a dry cold pack for pain relief.
Call Triple Zero (000) if an allergic reaction occurs, pain is persistent, or the sting site covers a large area or a sensitive region (e.g., the eyes).
Seek assistance from a lifeguard if available.

Note: Ensure the water temperature is safe to avoid scalding.

To prevent bluebottle stings:

Avoid swimming when warning signs are displayed.
Do not touch jellyfish in the water or on the shore.
Wear a Lycra wetsuit or protective clothing when swimming.
Use waterproof footwear when wading through shallow water.

Community Concerns and Safety Measures

The presence of bluebottles at Maroubra has raised concerns among locals and lifeguards. Maroubra’s Surf Life Saving Club (SLSC) has advised swimmers to remain cautious and check local warnings. The Jellyfish App and Beachsafe app are recommended for real-time updates on bluebottle activity.

While lifeguards provide first aid for stings, experts stress the importance of prevention. Beachgoers are encouraged to watch for warning signs and avoid swimming in areas where bluebottles are present.

Published 8-Mar-2025