Dr Gavin Grant, AONB and Geopark marine and coastal engagement officer, said that most visitors to the lough love seeing Squiggle and Squashy.
“They are what scientists call ‘charismatic megafauna’, basically large animals that are widely popular and mean many things to many people,” he said.
However, he added that it was important that people show them the respect they deserve.
“We would encourage everyone to keep their distance when possible, ideally over 100m away, and let any interactions be on the animals’ terms, never chasing, feeding or touching them,” he said.
“It is also not safe for people in the water with them, given their size {2.5-4m long} and the fact they are large marine predators.”