***

One day, a diver was enjoying the aquatic world 20 feet below sea level. He noticed a guy at the same depth he was, with no scuba gear on whatsoever.

The diver went below another 10 feet, but the guy joined him a minute later. The diver went below 15 more feet, a minute later, the same guy joined him.

This confused the diver, so he took out a waterproof chalkboard, and wrote, "How the heck are you able to stay under this deep without equipment?"

The guy took the board and chalk, erased what the diver had written, and wrote, "I'm drowning, you moron!"

     ***

    Three instructors and their students are on board a dive boat in the middle of the ocean. There is a NAUI instructor, a PADI instructor, and an SSI instructor. Everything is going fine until the boat springs a leak and starts to sink. The SSI instructor says to his students, "Okay, we're in the middle of the ocean, so we might as well do our deep dive." The NAUI instructor says to his students, "Okay, we might as well do our navigation dive, so let's get our compasses out and swim towards shore." The PADI instructor says to his students, "Okay, for $25 extra you guys get to do a wreck dive!"

     ***

     Two divers go spear fishing. They catch a lot of fish and return to the shore.
The first one says, "I hope you remember the spot where we caught all those fish."
The other answers, "Yes, I made an 'X' on the side of the boat to mark the spot."
"You idiot!" cries the first, "How do you know we will get the same boat tomorrow?"