Dana White Securing Private Island for UFC Fights, 'Fights Every Week'

Dana White tells TMZ Sports he's this close to closing a deal to host UFC fights on a private island -- where he would fly in fighters on private planes.

YES, THIS IS REAL!!!

The UFC boss tells us he's laser focused on keeping the business alive during the COVID-19 pandemic -- starting with UFC 249 on April 18.

White says the location for that event is still top secret -- though he's locked up the mystery venue where it will take place for 2 months and plans on pumping out fights every week.

But after that, White says he's planning to move the octagon to the island -- where he will set up shop and host fights involving massive international fighters.

White says the deal for Fight Island isn't…