Yes, Yas is in Dubrovnik! One of the largest superyachts in the world is anchored in the Dubrovnik port. It's owned by Sheikh Hamdan bin Zayed bin Sultan Al Nahyan, member of the royal family of the United Arab Emirates.
Yas is 141 meters or 463 feet long and it was delivered to its owner in 2013. It was built at Abu Dhabi MAR to a design of Pierrejean Design Studio.
The yacht can accommodate 60 guests and has a crew of 56 employees. It is worth around 180 million dollars!