Watch your kids get utterly lost in fascination and enjoyment.
Sue Bierman Park
A great playground option, a short walk from the museum and across the street from the Ferry Building
Ferry Building Marketplace
Lunch at the Ferry building - plenty of kid friendly options.
Pier 39
Take the Muni up the Embarcadero to see the Sea Lions at Fishermans' Warf.
Museum Mechanique
Teach the children about old arcade attractions. Freak them out with the Fortune Teller Machine, as seen in the old Tom Hanks movie Big. Break away for a game of Galaga.
Coit Tower
If the kids have any energy, walk up Coit Tower and watch the city from one of its most scenic spots.
Thanh Long Restaurant
If you've got adventurous eaters, take an Uber out to this restaurant by the ocean, tie on a bib and feast on roasted crab and yummy garlic noodles.
I would stay at: Hotel Del Sol
Old school boutique hotel in the Marina, fun for kids.