Everything you need is near the Ontario Mills Mall – Food a plenty, bars galore (sports bar too – Bostons), movies, shopping. It’s 2 miles from the Ayres, so if you don’t want to walk that far, the bell guys will drop you there & pick you back up. They will also provide transport to any of 3 area golf courses. Palm Springs is an option if you want to rent a car – tons more to do out there on a long layover, but too hot there in the summer !
If you have a long layover and want a full day’s worth of cool planes, have the hotel shuttle guys drive you out to Chino Airport (about 12 mins) and check out both the Yanks Air Museum and the Planes of Fame Air Museum. Each is between $11 and $16 for the full tour and there’s a little restaurant right between them where you can grab lunch. Here’s the websites: http://planesoffame.org/index.php?page=admission-hours-and-directions; https://yanksair.com/