No rooms. But I have seen it set up for a wedding with the white tents
They have a couple of classrooms which may be for rent.
I'm not sure. All I saw there was one big grass area by a pond. One large Building it looked like a house.
You may have already checked their site, but here's a page about booking private events in case you haven't: http://fullertonarboretum.org/fr_privateevents.php
I am uncertain but it is completely outdoors and if I remember correctly there arent any rooms or buildings for some events like that. But there is a large open lawn for people to come and relax and walk around.
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