3,209 rooms, excluding the other on-site hotels. The Mandalay Bay tower is built out in a Y-shaped layout. Rows of gold neon tubing run up the tower's sides, in between mirrored, gold-colored windows. Although the tower is 43 stories, the top four floors are numbered 60 through 63. Four Seasons occupies the 35th through 39th floors. The 40th through 42nd floors contain suites which are managed by Mandalay Bay. A club known as the Foundation Room operates on the top floor. Delano Las Vegas originally opened in December 2003, as THEhotel at Mandalay Bay. It was renamed in 2014. Like the Mandalay Bay tower, Delano is also 43 stories. It has 1,117 rooms, all of them suites. It is marketed as a separate hotel. The Mandalay Bay hotel rooms were upgraded in 2006, after MGM acquired the resort. A $100 million renovation of the rooms took place from 2015 to 2016. Four Seasons In June 1996, Circus Circus Enterprises announced its partnership with Four Seasons Hotels, which would manage a hotel connected to Mandalay Bay. The Four Seasons hotel opened along with the resort on March 2, 1999. It marks the first Las Vegas location for Four Seasons Hotels, a luxury hotel company which, for years, had wanted to open a property in the area. The Four Seasons was built to compete with a growing number of upscale Strip resorts such as Bellagio. The Four Seasons includes 424 rooms, and has various amenities – including restaurants, lounges, a spa, and a health club – which are located in a two-story facility on the south side of the Mandalay Bay property. Most of the amenities at the Four Seasons are inaccessible to guests of Mandalay Bay. The hotel excludes gaming, although Mandalay Bay's casino and other amenities are open to guests of the Four Seasons. The Four Seasons has been favorably received by guests. Since 1999, it has been a repeat winner of the AAA Five Diamond Award. It was the first hotel in the Las Vegas Valley to win the award, and in 2000, it became the first in the area to add a permanent kosher kitchen. A renovation of the hotel concluded in December 2012. Restaurants and clubs Mandalay Bay originally had 15 restaurants, 11 of which were leased out. Most of the restaurants opened with the resort, while three others debuted later in 1999. Among the restaurants is