"At the moment bath time is quite painful, but hopefully donning a snorkel and mask might calm him down," the Duke of Cambridge joked of the waterlogged chaos that surrounds bathing his son Prince George, who turns 1 later this month, and also tests his parenting skills and patience.
William, 32, made the remarks, appropriately enough, while taking over the presidency of the British Sub-Aqua Club (BSAC) from his father Prince Charles, 65, where he told guests he hopes George will follow in the two generations' footsteps and immerse himself in the joy and support of snorkeling, scuba diving and water sports.
William, who likes surfing and body boarding when vacationing in Cornwall and his been diving around the world, had the chance to don a wetsuit again and go underwater – this time in a London pool.
The prince also enjoyed a laugh at his dad's expense, when Chairman of the British Sub-Aqua Society (BSAS) Eugene Farrell shared a blast-from-the-past picture of Charles in the surf and described him to guests as "quite buff."
When Charles looked perplexed, William explained the term and added with a laugh, "Pa, you should be pleased!"
William then tried some snorkeling with a group of 8-year-olds to highlight the work being done by the BSAC to encourage diving among young people.
"I've been a fair weather diver up to this point," said William, whose wife Kate is also a member of the BSAS and did some diving in north Wales where the couple lived until last fall.
Concluded Williams to guests: "I'd like to get back into British waters."
Justin Tallis / AP