I agree with GhostHost about the Dunes in Newport Beach. We stayed there last summer with our 2 small DDs and loved it!
It's a resort RV campground. There are canoes that I believe you can rent (we didn't have time to do that), a nice playground on the beach for the kids, nice grounds, a general store that also sells coffee (great for those mornings when you didn't want to bother), a nice pool, and good laundry facilities. The one thing about staying there though is that if you stayed all day at Disneyland, you wouldn't be able to enjoy this beautiful resort. We wish we had allotted 1 or 2 days just to enjoy the place.
We loved the resort and have only 2 negative things to say about staying there. (1) It's pricey. We don't know what the rates are this year but last year I think we paid about $60USD per night--quite a bit of money for us Canadians given the exchange rate! (2) It's about a 40 minute drive from DL back to the Dunes. For us that was a long, hard drive, given that we were tired after a long day at DL and the kids were whiny and just wanted to crawl into bed.
