The strangest dream you’ve had

I like to think about my dreams, because I like so much the “world” behind that concept.
All the mornings, when I wake up, I try to remember what I dreamed last night. But, when I go to sleep tired, most of the time I dont dream, and it´s sad.
So, it’s difficult to think in only one “strange dream”, but I remember specific one that I woke up very alarmed.
It was a long time ago, and I was in a lake, with my family I think. I was happy, and I go to the water, but when I was inside, I look down and I couldn’t saw my feets. This mades me feel very confused because its seemed a cloudy water , but no one felt that. I remember that feeling very bad, and is strange because I can't remember nothing else about the dream after feeling that.
I never spoke about it because when I searched the meaning, I can't found and I believe this dream was something bad, and I tried to forget it. But when I think in stranges dreams, I always remember this dream and other one that I lived a tsunami.
So, I think my dreams related with water always will be strange and dangerous, I don’t remember to dream with calm water.