The Aqarium of the Pacific is worth checking out.
QUOTE(jim_hoyland @ Jul 15 2008, 09:00 PM)
For a day trip, I would recommend going out to Catalina Island. There is a high speed express that makes the 26 mile trip go by fast. The city of Avalon, only 1 square mile, is pretty cool, beaches, eating places, and interesting sites.
Express leaves Long Beach around 9am, a 5pm return will get you back by 7pm
I'm sure Catalina Island has a web page.