Royal Caribbean International has opened the doors to its private island in the Bahamas, which the company says is unlike any the world has ever seen.

While Royal Caribbean aren’t the first to bring guests to cruise-owned properties (with Norwegian Cruise Line opening Great Stirrup Cay in 1977 after it was sold to them by Belcher Oil Company), the company says its private island destination is unlike any the world has ever seen.

Perfect Day at CocoCay, Royal Caribbean’s reinvigorated Bahamas property, debuts a combination of “first-of-their-kind thrills and one-of-a-kind ways to chill”.

It’s the company’s first release in its new Perfect Day Island Collection – a line-up of “next-level” private destinations around the world – exclusively available to Royal Caribbean customers.

The latest Bahamas endeavour comes complete with North America’s tallest waterslide, the Caribbean’s largest freshwater pool and its own helium balloon, flying 450 feet high, which set Royal Caribbean back more than $358 million – a transformation, the company says, that stretches the boundaries of cruise development.

“Royal Caribbean is the proven leader when it comes to pushing the envelope in cruise ship design and the experiences offered at sea,” Royal Caribbean International president and CEO Michael Bayley said.

“With Perfect Day at CocoCay, we are so proud to bring our 50-year legacy of innovation ashore to transform an incredible island that now completely revolutionises private destinations in the vacation industry.”

Bayley said he was excited to see the island open after a long transformation process, and that guests were in for an experience “unlike any other”.

Following its opening over last weekend, Perfect Day at CocoCay is now open to the general public and is accessible from 11 of Royal Caribbean International’s ships.

Australians aiming to visit Perfect Day at CocoCay can expect to pay a minimum of $533 per person for a three-night Bahamas and Perfect Day cruise. The one caveat, however, is that all direct departures to the island leave from North American ports in either Fort Lauderdale, Miami or Orlando.

As of publishing, the company has not announced whether any locations for departure will come available.

Royal Caribbean’s CocoCay attractions are set to open in stages, with the company aiming to have everything available by December 2019.