Forty officers have been dedicated to the ongoing search for missing teenager Hollie McClymont from Glasgow.
The 14-year-old, who was visiting South Wales with family and friends, was reportedly last seen getting into difficulties in the water at Barry Island.
Acting Superintendent Marc Lamerton told ITV News police are 'extremely concerned' but are actively pursuing all lines of inquiry for Hollie's safe return.
The coastguards' role in the search has now been scaled down with the investigation headed by South Wales Police, but they remain on standby.
More top news
Visitors criticised inadequate numbers of toilets and food and drink stands, along with large queues.
Conner Marshall died of injuries in hospital after being found at the Trecco Bay holiday park in Porthcawl in March.
The weather forecast for Wales with Manali Lukha.