15yo has been twice before, I've been several times, my friend not for years. Need something to keep all kids (mostly) happy and entertained. Friend is keen for kids to stick to reasonable bedtimes...
Not disney, not Parc Asterix. We're staying west of the city.
No bookable tickets for the Eiffel Tower, weather is looking OK.
I'm happy to repeat all the touristy stuff but don't want to wear the kids' feet out.
Any kid-friendly suggestions?