Chronicles of the Cosmos

I remembered another one.

I'm at this dorm-like place and I'm walking from one section to the other with other students. We're on the outside walking on this really narrow walkway heading towards a door which leads to the next section. I'll never forget that walkway because it was surrounded by water! Like it was constructed over a pond or something.

Now I'm inside the other section and I'm walking down the hallway. There are students, boys and girls, going in and coming out of their dorm rooms but this doesn't feel like an ordinary college / school / whatever. And that's I remember.