The pitch is simple: stay in Garden Grove, play in Orange County. Harbor Boulevard hotels put you ten minutes from Disneyland at meaningfully lower nightly rates, and most run a park shuttle.
Inside the city, Great Wolf Lodge's indoor waterpark runs year-round and sells day passes, which is the rainy-January answer every local parent knows.
Atlantis Play Center is the free option and still the best one — shaded, fenced, and small enough that you can actually relax.
Food with kids is easy here. Vietnamese rice plates, Korean bulgogi, and pizza on Main Street all land with picky eaters, and nearly every restaurant in the city is casual.
Build in the beach. Huntington and Bolsa Chica are a 20-minute drive, and afternoon at the sand is the cheapest way to end a long day.