Fullerton has an adjacent cafe and you can watch trains from there. Several main-line freights come through. If you want non-RR activities there are several restaurants nearby but no mission or museum.
Irvine is a relatively modern facility but there isn't much within walking distance, other than fast food.
The Oceanside pier ride is shorter but the beach is right there! Only certain trains stop there though; most pass on through.
Anaheim has Edison Field (Angels' Stadium). Even if you can't go to a game they sometimes have other events there. The stadium is right near the station; the Pond is bit further away.
Santa Ana has a large station (lots of buses there too) but it's a bit of a wlk to downtown.
The pedestrian route isn't particularly scenic, but I've walked to the museum from the station in 20-25 minutes or so (yes, I know nobody walks in California, but you can all use the exercise). It's possible that a local bus runs from the station, too.
As for Fullerton, the station houses the offices of Trainweb. I don't know if they're equipped to handle visits from school groups. But if the kids are into trains. . . .
[This message has been edited by dilly (edited 08-18-2004).]
I'm a retired teacher and one of my fondest memories is a field trip from Arcadia to LA Union Station. I think I was in fourth grade and the engine, if I remember correctly, was steam. I was hooked on travel in general and trains in particular from that moment. You'll find that the "big things" count but it's often the "small things" that your students will remember and remind you about later.
Have a great "Field Trip"! And be sure to fill out all the paper work in triplicate. It will be worth it!
Frank in SBA.
I do not recommend taking school children to Fullerton just to watch trains. It sounds like fun, and it actually is, but may not be the most entertaining or safest thing for youngsters.
Several freights fly through Fullerton and this may not be the safest place for children as they like to explore. I know when I was in 3rd grade I loved to explore and look around. Unfortunately it might be a little dangerous at Fullerton as the tracks are very easily accessible from the platform and there is no type of safety fence.
Also there can be long periods when no trains go by, thus the kids might get bored and wander off.
If you have a very small class this might be feasible, but if it is a standard size class this is probably not the best of ideas.