On November 1, 2012, construction began on a $160-million expansion that included a new 403-room hotel tower and a 23,000 square foot convention center, which can be converted for meetings, concerts, and other uses. Rooms on the first floor facing the pool also have a private balcony with lounge chairs. The Palomar Suite is the smallest suite in this tower while the larger Laguna and Malibu suites include a private small heated pool outside the room. Dive Inn includes non-smoking and smoking Deluxe rooms with a small balcony. The rooms are also in close proximity to the fitness center on the 2nd floor of the South Tower. In 2017, the resort introduced 'Resort Wellness Rooms and Resort Wellness Suites' located on the 2nd floor of the North Tower which has Vitamin C infused showers, bathrobes and slippers as well as exercise equipment in each room. The North and South Towers includes non-smoking and smoking Luxury rooms, as well as the La Jolla suite (2 rooms on each floor of the South Tower and the majority of the rooms on the 20th floor of the North and South Towers), 4 Coronado Suites total on each floor which includes a balcony with a table and 2 lounge chairs facing east (South Tower) and north or south (North Tower), Catalina suite which is exclusive to the renovated South Tower and features 1 king and 2 queen beds, extra space and 2 lounge chairs and a table on the private balcony facing west and the 'Mayoral Suite' located on the top floor of the South Tower. The resort also includes a spa and nearby Woods Valley Golf Club.

The architects for this casino were the Steelman Partners of Las Vegas, NV, providing interior and lighting design. The casino consists of 1600 slot machines and 51 tables, including eight poker tables. There are 662 rooms in the Resort Tower South and Dive Inn and there are 403 rooms in the Resort Tower North. The hotel has three towers: Dive Inn (formerly Garden Tower, opened in 2002 and renovated in 2004), Resort Tower South (formerly Spa Tower, opened in 2004 and renovated in 2015) and Resort Tower North (opened in 2014).

It is owned by the Rincon Band of Luiseño Indians and operated by Caesars Entertainment. Harrah's Resort Southern California (formerly Harrah's Rincon) is a Native American gaming casino and hotel in Valley Center, California.

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