Nicola Bulley's dad says the family are waiting for a "breakthrough" as today marks three weeks since she went missing.
The mortgage adviser, 45, was last seen on January 27 while walking her springer spaniel Willow in the village of St Michael's on the Wyre in Lancashire.
Police launched a massive search for the mum, using drones, dogs, and specialist divers and expanding more than 13 miles to Morecambe Bay.
