Last night's dream

I dreamt i was at a huge rectangular park that was next to a water park with huge slides that were really long. Emerson was there being my friend and talking like a cowboy.  He was the only person I recognized.  In the dream he had a girlfriend.  He slid down a different slide than the one i did.  I rode the slide about 4 times at least. Then it was nighttime and i realized we were all students there.  There were people walking across the big park that night to class! 

I ended up walking into a class with a few, handful of other students- all male, some were black.  I felt comfortable in that class but i did not know anyone, not even the grumpy old male teacher with glasses.  I was looking for clues to where i was.  I wondered what hapened to Emerson.