"As soon as I put on the family WhatsApp group everyone started laughing. They couldn't help notice the well-rubbed area between his legs.
"While waiting to get back on the cruise ship I then realised a stream of tourists who were keen to touch that area. It seemed to make them all smile, particularly a young blonde lady. She couldn't keep her hands off."
The statue is proving far more popular than a bronze bust of the Juventus striker, unveiled as part of the renaming of an airport in his native Madeira in March 2017.
Fans slammed the bust on social media, insisting it looks nothing like the footballer.
Ronaldo, 33, moved from Real Madrid to Italian giant Juventus for a fee of €100 million ($170 million) in July last year.
While his first season with the Serie A club has been prolific on the pitch, Ronaldo has been dogged by rape allegations.
Kathryn Mayorga, 34, claims the footballer assaulted her in a Las Vegas hotel room in 2009 - a claim Ronaldo denies.