Hi there,
I have scuba dived regularly with grey seals in Wales for years now, with no problems. (You would be pretty lucky to see a common seal around the UK, as they are actually pretty rare!) Seals, in my limited experience, are usually cautiously interested in divers. They keep their distance, but will swim by, and take a look at you...
I recently took up freediving, and this year, for the first time, I dived with a pair of grey seals, with no bubbles!
It was awesome! One of the most amazing experiences I have ever had! :inlove
The seals were really intrigued by my mono fin, and I spent a couple of hours playing with them. They would mimic what I was doing, dived when I did, did rolls and summersaults with me. If I finned along on my back, they would swim above me, almost face to face ! One of them came up to me, and blew bubbles out his nose at me ! (which made me laugh, so I had to come up!).
I was exhausted in the end, trying to keep up with them, and got the impression that they were showing off, and making fun of my pathetic attempts to stay underwater! rofl
When I finned on my back, back to the boat, they were swimming along side me, and underneath me. When I was about 10 metres away from the boat, they surfaced, and seemed to look me straight in the eye, face to face, from about 1 metre away. The other (scuba) divers in the boat were amazed at how close they were to me.
It was an amazing experience, and if you ever get the chance to do it……
However… I WOULD avoid them in September and October… that’s when they pup, and breed, and they may not be quite so sociable !!