Easter at Lake Somerset

Hi All,
I, like a lot of other people spent Easter at Lake Somerset Holiday Village. We all got very wet due to the wonderful rain we received. Not necessarily physically - but certainly our campsites.
My set up is pretty good - 4 Oztrail module tents, under a 30' x 24' silver tarp. I also put down some shadecloth and blue tarps under the tents for protection. So we didn't have any problem staying dry.
My question is: What do you do when the rain finally stops and the sun comes out, and you still have several days left of your holiday?
I'm referring to the very unpleasant smell of the trapped water/wetness/grass under the tents etc - along with the flies and mozzies.
I solved the problem by cutting my losses and packing up and going home early on Tuesday. (along with a lot of others)
Is there something I missed, or is this the only way of coping with a thorough wetting?