I've done salvia a few times. The first time I really didn't get a good enough hit, I sat around and laughed uncontrollably for like 1 minute, but everything else was normal. I did trip hardcore on it once, and it was very calming - almost strangely calming compared to all the horror stories out there. I think that what I'll do is go camping for two days perhaps, arriving in the afternoon/night the first day - as the sun is setting and I'm sitting around a campfire, I will take salvia. I would like to wake up the second day, get things prepared for the whole day - consume the mushrooms in the late morning and either sit around the land or have one of my friends drive to a nearby lake to fish and relax next to some water (no swimming for obvious reasons - besides there is no swimming in the lakes that I know of around there.)
Swimming while tripping is fun, but probably not a great idea your first time. lulz. Fishing sounds cool.