Nicola Bulley's friend said "nothing is making sense" following her disappearance.
Family friend Heather Gibbons spoke on the banks of the River Wyre in Lancashire as specialist underwater divers searched a stretch of river where police believe the 45-year-old may have fallen in. Peter Faulding and his team from Specialist Group International, are using sonar to scan the depths on day 12 of the search for Nicola.
Family and friends of the mum-of-two have questioned the police "theory" that she probably fell into the water while walking her dog, after dropping her children off at school in St Michael's on Wyre, Lancashire on January 27.
READ MORE: Our reporter visited the scene where Nicola Bulley went missing and found a village in shock
Peter, a private search expert sometimes used by police, has said if his team cannot locate Nicola in the river then she is not there and he would not rule out "third party involvement" in her disappearance. Heather said speculation, rife on social media, about the disappearance, was "hard" for the family to take and a stream of visitors, members of the public arriving from far and wide, some bringing children and taking selfies, had made the area feel like a "tourist spot".
She said: "I think it's incredibly hard, but up to a certain level, we understand it's human nature, it's natural for everyone to have speculation, because the truth is in this, nothing is making sense. The turnout for the search has been amazing, it has been incredible.
"But we have noticed it does feel like some people have come to maybe use it as more like a tourist spot, to do their own personal social media things which in some ways we see and understand but it is hard, there's a lot of people around as it is, so yes, if you are here to join the search, we are really appreciative.
"The truth is if we look at it factually, no-one knows until we have some evidence. I know that the family are massively appreciative of all the police have done.
"As family and friends, the way we are looking at it is, between Peter and his team and the police, we feel we have got the best of the best on that water and hopefully it will be a completion, one way or the other.
"And if they find nothing, then maybe its time to start looking down other avenues."
Earlier Peter told Good Morning Britain detectives investigating the disappearance "have got nothing to go on".
He added: "I personally think, if I rule this stretch of water our where we are working today, I don't think she is here. I think there's probably a third party involved."
On Tuesday Peter and his team made repeated sweeps up and down a section of the river using sonar equipment. They were concentrating on an area around and downstream from a bench where Nicola's mobile phone was left, still connected to a work call.
The lead to her springer spaniel dog, Willow, and its harness, were also left at the bench. Police divers have previously searched the same area last week amid a huge ongoing hunt for mortgage adviser, who lived in the village of Inskip, two miles from the river.
Police say they have ruled out Nicola leaving that area of the river and suspect she may have gone into the water after an "issue" with the dog while walking. An update on the search is expected by Lancashire Police later today.
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