closed in November 2007, replaced by the BLT Burger restaurant. The tigers were moved to Siegfried & Roy's Secret Garden to encourage more visitors there. Several animal-rights groups have criticized the habitats. In 2009, Born Free USA and the World Society for the Protection of Animals accused the Mirage of using its dolphin habitat for entertainment and profit rather than education. Fourteen dolphins had died at the habitat since its opening, five of them stillbirths or young deaths. Others died from respiratory problems. Later in 2009, the Mirage imported two new dolphins, despite criticism from the groups. After extensive inspections, American Humane certified the Secret Garden and Dolphin Habitat in 2017, stating that it represents "the gold standard for animal welfare". It was one of 14 animal attractions worldwide to receive the certification, and the first in the western U.S. MGM closed the Secret Garden and Dolphin Habitat in September 2022, following three more dolphin deaths that year. Hard Rock International subsequently determined that the attraction would not be part of its future plans for the resort. Restaurants The Mirage opened with five fine-dining restaurants, including the Italian-themed Ristorante Riva. It also had middle-class eateries such as the Bermuda Buffet and the 24-hour Caribe Cafe. To keep costs down, a single kitchen was built in the center of the property to service the restaurants. In 1998, the Mirage revamped its restaurants and added several new ones. Among them was Onda, an Italian restaurant by chef Todd English that replaced Ristorante Riva. Chef Alex Stratta oversaw Renoir, a restaurant featuring paintings by the French artist Pierre-Auguste Renoir. It opened in 1999. A year later, Renoir became one of the first Las Vegas restaurants to win a Five-Star rating from the Mobil Travel Guide. It also won the AAA Five Diamond Award in 2001 and 2002. Renoir closed in November 2004, after Stratta declined to renew his contract. Several restaurant changes were made in the mid-2000s. A new buffet, designed by Adam Tihany, was added in 2004. Carnegie Deli, a popular Manhattan establishment, opened another location at the Mirage in 2005, also with a design by Tihany. Like its predecessor, the Mirage location was also popular. It eventually closed in 2020, to make way for a new eatery. B.B. King's Blues Club opened a location at the Mirage in November 2009, replacing the Caribe Cafe. The club operated through a lease agreement