90 Day: The Last Resort is filmed at luxury resorts in the U.S., not overseas. For season 1, the show was filmed at Isla Bella Beach Resort in Marathon, in the Florida Keys, Florida , a high‑end oceanfront property with multiple pools, a spa, and private beach area.

For season 2, the franchise switched things up and filmed in the Arizona desert , at the Omni Scottsdale Resort & Spa at Montelucia in Scottsdale, Arizona, a Spanish‑inspired resort known for its Andalusian‑style architecture, mountain views, and multiple pools and spa facilities.

So if you’re wondering “where is 90 Day: The Last Resort filmed,” the answer is:

  • Season 1: Isla Bella Beach Resort, Marathon, Florida Keys, Florida.
  • Season 2: Omni Scottsdale Resort & Spa at Montelucia, Scottsdale, Arizona.

Information gathered from public forums or data available on the internet and portrayed here.