Palo Alto suitable for children

I will attend a conference in Palo Alto and am considering to bring my family (spouse, 11y old kid).

As I will attend the conference my family would have to spend the days on their own. My question is if Palo Alto is suitable for them. As I can see from the map there is likely no beach to go swimming, the number of sights in Palo Alto (those without nerd factor) seems limited as well.

Their English skills are moderate only.