Water Dream "Covers and Jumping" from 07/01/2010

Not a very long dream, but signifigant none the less. These recurring water dreams leave me puzzled every morning. dreamed I was in a large swimming pool, sort of olympic sized. there were a few people around not many, but none of them in the pool. Water was clear, but in the bottom of the pool layed a large plastic cover or piece of plastic or a large tarp looked like it had sank to the bottom of the pool and was laying there covering the entire bottom of the pool except for on the long sides - I could see that the piece of plastic or tarp was trying to hide dirt. the end was lifting up and i could see dirt under it. I then remember jumping up off the bottom of the pool, like sort of springing up off the bottom and jumping up out of the pool and soaring through the air, what must have been like 20 feet in the air and landing in a pond, a large pond. The water was so clear, way to clear for any pond that i've ever seen. On top of the water was the same sort of plastic tarp thing, but instead of being on the bottom, it was laying on the top of the water. I felt freaked out, knowing that when I landed in the water that i would sink, and the plastic tarp would engulf me and i might be smothered to death or trapped under the water and not be able to get up to the surface. i remember sinking in and the tarp colapsing around me, feeling like i was going to drown to dealth. I couldn't reach the bottom and i grabbed at the plastic trying to move it around and swim to the top, but then i woke up. did not wake up scared or anything just very puzzled.