So when a black hump emerged from the dark waters of Britain's biggest loch, as Connie Ross and her daughter Reyshell Avellanoza were taking pictures, the opportunity was too good to miss.
But the pair were so mesmerised for those vital few seconds, their chance of capturing a rare close-up image of the Nessie phenomenon, was gone.
Instead, they filmed the aftermath as the mysterious object sank to just below the surface and moved away into the loch, leaving behind a perfect circle of disturbed water.
It was 29 year old Reyshell's first visit to Scotland, having flown over from the Philipines with her five year old daughter, Heather Elizabeth, to visit her stepfather, 73 year old retired architect Campbell Ross and her mother and Campbell's wife, Consuela (50).
Or, could this video be of the Loch Ness Monster?
Connie said: "Campbell drove us down to the loch last Tuesday. He stayed in the car park, and my daughter and granddaughter walked down to go round the Castle and then take pictures by the loch-side.
"It was about 1.30pm in the afternoon and I had my still camera. Reyshell had her tablet and we were taking pictures when Heather pointed out something in the water.
"She said it looked like a big black belly. We looked and could see this big disturbance quite a way out and this big black object in the middle of it.
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