Two people explore Devil's Den, a popular cave diving spot in Florida. They find bones, bullets, barbed wire, and a rubber halo ring for outdoor and scuba use, as well as some money. They also try their hand at metal detecting and find rusty nails, screws and a pearl. At the end, one of them jokes about a metal detecting competition against the other. They encounter a fan who gives them a nickel he found, and a local who tells them about a ten thousand year old extinct bear skeleton that was found in the cave.
Sure, here are the key facts extracted from the provided text:
1. The location involves walking down a staircase to reach a spring.
2. The spring is underground, resembling a dungeon.
3. The water is crystal clear, with fish and a turtle present.
4. The place is called the "Devil's Den" due to a collapsed roof.
5. They used a metal detector to find items, including rusty screws and nails.
6. They found a pearl earring and coins.
7. They discovered a rubber ring called a halo ring.
8. Bones, possibly animal bones, were found in the area.
9. An extinct bear skeleton, around 10,000 years old, was found nearby.
10. There was no mention of finding any human remains.
These facts summarize the key details from the text without including any opinions.