At FUNbelievable kids play indoor with playground equipment imported from the United Kingdom. Meeting all playground safety regulations, the 6,000-square-foot facility helps children use their imaginations while developing their physical and mental capabilities, and climbing structures and interactive games encourage social skills that come in handy when imaginary friends go off to college. A colorful three-level play structure hosts fun amenities such as tube slides, climbing walls, tiki-figure punching bags, and a ball shower, whereas the sports arena gives future athletes the chance to kick goals and shoot baskets. Wobbly walkers and toddlers enjoy more age-appropriate play in their own space, which scales down big-kid fun into an area littered with soft toys, a mini ball pit, and mini slides.

Parents can sip coffee in a lounge area and rest easy knowing their children are playing on equipment that's sanitized and inspected daily. The staffers are fully trained, and many of them also are certified in first aid and CPR and boast an encyclopedic knowledge of cartoons.

In 2012 and 2013, Red Tricycle named FUNbelievable "Best Indoor Playground in Southern California," and in 2015, 2016, 2017 and 2018, readers of San Diego Family Magazine voted them "Best Kids Party Venue."