Caught a train somewhere. Not sure if I was with anyone at this point.
Some guy narrowly missed it, running up desperately and even knocking on the glass as it pulled out, as though he really expected the driver to stop for him. For some reason once the train was underway, going through a tunnel or two, some annoying woman in the carriage piped up and started haranguing the driver for not stopping for that guy.
It was really getting on my nerves. I think she even bizarrely told him to go back for 'em, which didn't make sense at all.
Then, eventually, we arrived - at some tranquil beach-y/riverbank area (I can't remember if there was sand or not at this point, been awake for hours). Not really where I would expect a train to be heading, but there you go.
Can't remember exactly what went on at this point, there was various stuff. I know at least one of my IRL friends was in the group of people who'd disembarked the train by this point - and I think the train was still sitting there in its stop, despite the fact that we were waiting for more people (like that derpy businessman who missed the train) to show up on the next train?
I dunno, but I seem to recall getting on and off the train at least a few times in this same location, as though people were just chilling out in there.
There were various interactions with other characters which I have entirely forgotten. Alas.
Anyway, my friend Adam had a dog with him. This dog was sort of a composite of his old, IRL dog that I still remember clearly from years ago when we were kids and another friend's present-day dog - they are both border collies and thus severely fukked in the head, so it works.
This one shared the latter's obsession with fetch, and after a while I started kicking a tennis ball around for the dog (like I was doing with my housemate's cat yesterday, interestingly enough). After playing fetch for a while (my friend was also participating, not sure if any others had joined) one of my kicks wound up landing the ball in the water.
I ran down the hill away from the train, watching as it drifted away from shore, then turned and called apologetically to my friend that I couldn't really go in after it, considering I had some undefined, electronic or otherwise water soluble items in my pockets. (In hindsight I am unsure why the lazy-ass dog didn't swim out to get it itself. I can hardly imagine water seeming like much of an obstacle to a fetch-obsessed border collie.)
He wasn't worried, I think he wandered off to put some swimmers on or something? In any case, before long he came down, entered the water, and kicked the ball back out again. It was a good kick - but then it hit some bump on the hill at high speed, bounced dramatically, and wound up straight back in the water again - further off this time, and quickly drifting away downstream (or across the surface of the water, can't remember if it was running).
I burst out laughing. May have even been laughing out loud in my sleep, for all I know.
It drifted off into the distance, under some sort of bridge which also seemed to traverse a small waterfall down to another level of water. We could see some kids hanging around the bridge, doing water-stuff.
I looked at my friend, puzzled as to why he wasn't getting a move on and going after the ball, saw that he didn't seem to be in any hurry, then woke up.
Tl;dr: caught a train to an idyllic riverside/beach nature spot where it then illogically parked, hung out with a varied and half-forgotten cast of characters including an old IRL friend and his dog, played fetch with said dog and eventually kicked ball into the water.
I also had an earlier dream (this one occurred after I woke up in the morning, heard raised voices in other parts of the house that I couldn't be arsed investigating, and went back to sleep) which I could remember a few details of before, but I seem to have completely forgotten them at this point. Dang.