I went around 30 years ago. I don’t remember signs...but the path you walk is essentially a boardwalk, with railing on both sides. I do think there was a park ranger at the beginning of the path, who gave us instructions not to leave the path...really so we wouldn’t damage the springs.
The average IQ is 100. 50% of people are below that. To top it off, his sister filmed his death. Something is very wrong with that behavior.
People were not that stupid back then. :-)