Prince Charles has revealed that he used to sing to seals as a child with his grandmother near her Highland home.
Prince Charles spoke of the late Queen Mother with affection
He recalled memories of visiting Castle of Mey in Caithness during an interview for next Sunday's Songs of Praise.
The prince describes how he, the Queen Mother and his sister Princess Anne would sing Over the Sea to Skye to the animals from the cliff tops.
He also told the BBC programme: "One of the things that is so special to me is the connection with my grandmother".
He told presenter Sally Magnusson that for years they would travel up the west coast in Britannia and end up in Scrabster.
"We came here for lunch and always used to go for a potter on the beach, " he said.
"And my grandmother, I've never forgotten, when we were small my sister and I, she used to take us down, stand on the cliff there and we'd sing to the seals.
"It was absolutely riveting, we'd sing 'Over the Sea to Skye' and it was very interesting, these heads would bob up and they'd start coming closer."
The special edition of the programme was filmed in Caithness.
The prince was interviewed in the Castle of Mey, the late Queen Mother's beloved home.
He reflected on the sanctuary Caithness offered in a frenetic world where "the aim seems to be to go even faster".
"I just think we need to remember we are a part of nature and not apart from it, which I think has been one of the great problems of the twentieth century, " he said.
The Prince of Wales also spoke about a new initiative he launched recently to promote the North Highlands' produce and tourism.
The programme will be screened on Sunday 11 September on BBC One at 17:05 BST.