Somewhere dry when the forecast falls apart. Frames, ball pits, sensory rooms and bowling.
Lancaster's council leisure centre doing triple duty: Energy soft play, XHeight climbing walls and a 33m pool with a waterslide and inflatable sessions. Cheaper than the private soft play chains, and everything is under one roof for a wet day.
Two-tier soft play frame, low climbing wall, pirate ship, crawl tubes and a bouncy slide, plus Messy Monday and sensory sessions during the week.
Bigger than the average soft play: multi-level frame, a spooky room, an astro slide, a climbing wall, two mini bowling lanes and a slot racing track. The bowling is what makes it work when you have a toddler and a seven-year-old to keep happy at once.
Straightforward multi-level soft play with a café that adults can actually sit in. Nothing fancy, reliably works.
Soft play plus bowling under one roof, which solves the two-different-ages problem in a single trip. Ask for the barriers if anyone is under about six.
Council-run indoor play and sensory space. Quieter than commercial soft play, which suits some days better.
Funded holiday clubs with food included, ages 4 to 18, for families on benefits-related free school meals. Worth a look even if you assume you won't qualify.