Free and easy-to-access right off the highway. I went at night when it's technically "closed", but it's just a short path to get to the prints. In any case, I'd recommend going during daylight hours.

I went down to the water first, and there are some prints there, but you'll find the real trove if you continue on the path past the steps down toward the water (as indicated on the sign). The sign says not to cross the railroad tracks but there is a well-worn path over the tracks down to the water.

These footprints were made by dinosaurs that lived approximately 200 million years ago. That means that the dinosaurs that died in the Chicxulub meteor impact 65 million years ago were 3x closer in time to us than they were to the dinos that made these prints. These are very old prints!

It is amazing to see them and touch them. There are prints from many different species, some big, some small. The bigger ones are easier to see. Interestingly, almost all the prints are pointing the same direction, which some have cited as evidence of interspecies herd behavior (though it's not clear if the prints were made at the same time -- they could have been made hours or even weeks apart).