Pictures shared by Echo camera club member John Nugent show the multi-million pound yacht Kismet, dubbed a superyacht due to its size, on the estuary.
The vessel belongs to Shahid Khan, a Pakistani-American billionaire businessman and sports tycoon.
Khan owns is the owner of the Jacksonville Jaguars of the National Football League (NFL) and Fulham in the Premier League.
He is also the co-owner of WWE competitor All Elite Wrestling alongside his son Tony Khan.
The billionaire bought the 122-meter yacht was sold for a reported $360 million last year.
According to US media reports, the Kismet is Khan’s fourth yacht and third superyacht.
It is reported to have six decks with three pools, four fireplaces, a pickleball and basketball court, two fire pits, a sauna and a Turkish bath.
Like many megayachts it also has a helipad, as well as a salon, spa, gym, theatres, and dance floor.