Fight Island turns out to be Yas Island, Abu Dhabi. Yas Marina (also on the island) is where the Grand Prix of Abu Dhabi is held.


UFC 251 on Fight Island (Yaz Island, Abu Dhabi) main card:

UFC Welterweight Championship: Kamaru Usman (c) vs. Gilbert Burns
UFC Featherweight Championship: Alexander Volkanovski (c) vs. Max Holloway
UFC Bantamweight Championship: Peter Yan vs. Jose Aldo
Jessica Andrade vs. Rose Namajunas
Amanda Ribas vs. Paige VanZant

The way the UFC's luck has been with fight cards this year, if they book three title fights, they might manage to pull off one.

RE: the island thing, what I couldn't figure is how the UFC could support all the "high roller" traffic if the event was held on an island. Silly me, I heard "island" and immediately started thinking "Gilligan's Island," someplace remote and underdeveloped. But they don't come much more plush than facilities to host F1 races. And it's only an island because they dug a canal between it and the mainland.