Dream of building, child, church, biting, hallway

I was at lake mead on a wood dock. Everybody was in the water so I thought I would jump in. The next thing I remember I was under the water it was very clear just a little murky. I could breathe the next thing I am cover in leeches and can feel sharp pains where there biting. Then I'm back on the dock picking and peeling them off. Once I pull the last one. I am trying to get off the dock, but I can't. There is a building that I can jump too but the only area looks to be a small box like room. I look down at the beach sand between me and the building and there are yellow and black alligators covering the sand. I jump and land in the box that then turns into like a church. The preacher is talking about there child that has no arms or legs. She is connected to like a swing and then begins to swing above us. We are then taken out of the room into a hallway that turns into a block party where I can't find my youngest child. I find him behind a door where there are stairs leading down that he is climbing up. I go to get him and then I am back in the parking lot looking for my car and wanting to find a place to get food.