??? I LOVE Holbrook Palmer. My kids get a bit tired of going, but no, it’s one of the best parks around here, IMO. It’s big, it’s peaceful–aside from Caltrain–has a fenced toddler area plus an older kids gym, a big grassy field for frisbee/soccer/whatever and has a loop around the park for joggers/walking. Also tennis courts. Some of the trees have labels if you want to turn it into a nature walk. There’s a lot of trees around for climbing, hiding, and getting large sticks to hit each other with. Multiple sets of bathrooms, and picnic benches.
Redwood City has some parks that also are nature-preseve like, so it’s not necessarily the only place to do nature-walks, but it’s the closest/easiest one for us to get to.