Several popular beaches south of Sydney have been closed due to a higher risk of sharks in the area.
The warning was triggered by the appearance of a 25-tonne partial whale carcass on Era Beach in the Royal National Park on Saturday morning.
Nine beaches in the park were closed for Anzac weekend and are expected to remain closed for the public holiday on Monday.
The whale body was found by lifesavers and is expected to be removed sometime this week.
Surf Life Saving NSW told visitors at the beaches - including Garie, Wattamolla, Era and Burning Palms - to stay out of the water due to increased shark activity.
'We know that there are some great white sharks that have been sighted around the carcass and some bull shark sightings there,' NSW National Parks and Wildlife Service's royal area manager Brendon Neilly told ABC.
'The advice is not necessarily avoid the area, but stay out of the water.
'We've been liaising closely with several of the Surf Life Saving Clubs and also Surf Life Saving Sydney to ensure swimmers and beach users are safe and the beaches in that location are currently closed.'
A large whale carcass (above) in Royal National Park has caused increased shark activity at nine beaches
The partial whale body (above) won't be removed until later this week
The 25-tonne partial whale carcass was discovered on Era Beach (above) in the Royal National Park on Saturday morning
Lifesavers are patrolling the water using jetskis and drones.
The closures will remain in place until the risk has reduced.
The affected areas are: Figure Eight Pools, Garawarra Farm carpark, Garie Beach picnic area, Governor Game lookout, North Era campground, Palm Jungle loop track, Royal National Park Visitor Centre, The Coast track and Wattamolla picnic area.