“When hot air rises, cooler air rushes in to fill the space it leaves, thus making wind at the land’s surface.” This quote is from an educational sign at San Mateo’s Seal Point Park ‘Wind Walk’.
This park is located next to the bay. I started the walk at the top, where you can also park your car.
The first sculpture there is a wind rose with multiple layers that spin. Next to it are three interestingly shaped sculptures.
One looks like two giant cymbals, one an organ and one a tree-like piece. 
If you follow the lower path you will walk by three groups of three wind structures. Only one of the nine was moving when I was there. It might be that the wind was not very strong.
This is all built on a landfill. So, I congratulate the city of San Mateo to create a great retreat out of some rubbish. I’m not quite sure the sculptures work as proof of wind, but they are interesting to look at nonetheless.
Do you know of any wind sculptures?
One of the must-sees for every visitor coming to the Bay Area are those “really big trees”. If you can, head over to 