The types of rooms available at TownePlace Suites by Marriott Ontario Chino Hills include One-Bedroom Queen Suites with Sofa Bed and Adapted Tub - Mobility Accessible, Queen Studios with Two Queen Beds, One-Bedroom Queen Suites with Sofa Bed, One-Bedroom Queen Suites with Sofa Bed and Adapted Tub - Mobility and Hearing Accessible, and King Studios with Sofa Bed. Smoking is not allowed in any of these rooms. The occupancy ranges from 2 to 4 adults, with bed options including Queen size beds, King size beds, and sofa beds. The room sizes vary between 344 sqft and 452 sqft.

Guests at TownePlace Suites by Marriott Ontario Chino Hills can enjoy their time at the hotel by indulging in various leisure activities. The hotel provides an outdoor swimming pool, which is heated and has a shallow end. This pool is available throughout the year and is exclusively for adults.

In addition to the pool, guests have access to a range of amenities to enhance their leisure experience. The hotel features a golf course and a tennis court, providing opportunities for guests to engage in these sports. For those who prefer a more relaxed setting, they can take advantage of the beach chairs and loungers available.

Furthermore, the hotel offers live music performances, allowing guests to enjoy some entertainment during their stay. For fitness enthusiasts, a fitness center is available. Additionally, the hotel provides facilities for outdoor activities such as cycling and hiking, along with bicycle rentals.

The TownePlace Suites by Marriott Ontario Chino Hills hotel has one pool available. The pool is located outdoors and is heated. It has a shallow end. However, it has an age restriction and is only available for adults.