Rowley Shoals Marine Park (Mermaid Reef, Clerke Reef, Imperieuse Reef)

High risk: Isolated remote location

Located 300 km offshore from Broome with no medical facilities, emergency services, or evacuation options. Any injury or medical incident is extremely serious.

High risk: Remote location

Located 260 km offshore with no emergency medical facilities; evacuation is via cruise vessel only and can take 12+ hours to reach Broome.

Moderate risk: Strong tidal currents

The Rowley Shoals experience dramatic tidal movement with up to 4-5 metre tidal ranges. Channels between reefs and lagoon entrances can have powerful currents that can sweep snorkellers away from their group.

Moderate risk: Box jellyfish / marine stingers

Tropical waters of the Kimberley region may contain marine stingers including box jellyfish, particularly during the warmer months (November to April).

Moderate risk: Exposed reef flats at low tide

Large sections of the reef fall dry at low water, exposing sharp coral boulders that can cause injury to swimmers and damage to vessels.

Low risk: Marine heatwave / coral bleaching

Recent marine heatwaves have impacted the reef systems. While the area remains remarkable, bleaching events can affect coral health and water clarity.

Low risk: Marine heatwaves / coral bleaching

Like many reef systems, Imperieuse Reef has been affected by recent marine heatwave events which can reduce coral health and water clarity.

Low risk: Tidal currents in lagoon channels

The central lagoon has no navigable channel and can only be accessed by small tender vessels. Strong tidal flows can occur through reef passages.

Low risk: Marine stingers

Box jellyfish and other marine stingers may be present in tropical waters, particularly during the warmer months (October to May).