Southern Cal RV parks that also store RV's

I have a 40 foot 5th wheel which I haven't been using so much so it sits in storage.

I was thinking if there was a cool RV park that also stored RV's I could just show up and would use the rig more.

Any ideas?

I am in San Diego and would like to be within 2 hours of the park.

Maybe a long shot?

Thanks for the help..

Matt