>>21455406I remember watching a 3hr long video of POV scuba cam footage of some pro diver exploring this exact place on youtube. It's called the "Devil's Den" and it's in florida. he also ignored the sign and went way deeper lol the warning is mainly there for newbies - it's a popular tourist attraction so they need to have some sort of reminder for casuals. It's more so marketing than actually dangerous
However it does look like a really awesome place. I can't find that exact video but here's a similar 8 minute one of some retard with a shaky cam
https://youtu.be/idQrlunGrSA?feature=shared 
