An outdoor activity centre has temporarily closed as police search for a woman reported missing near the area.
Rachel Booth, aged 38, was last seen at about 03:50 BST on Saturday at Sandiway Garage on the A556 in Northwich, Cheshire Police said.
Insp James Wilson said officers were “becoming increasingly concerned for her welfare”.
Wild Shore Delamere, which offers outdoor activities at its lake, said it had shut “due to ongoing police investigations in the surrounding area”.