I know the lookout itself is first come first served, but how does that work? Does someone have to sit there all day letting people know it's taken for the evening, or can you write and leave a note that it has been claimed for that night?

Last time I came there (no overnight), there were plenty of people to spend the night there, in a kind of mattress and all over the place, but depends on the season I guess. If you plan to sleep there I recommend not to arrive too late and of course take your mat and stuff

Zakkry - Thanks, I figured as much. Though I don't mind having others there, just would like a spot for the night 👍

Yep, just sit and wait until its empty and stake your claim