Well I can recommend one! Take a look at http://www.francesw.com - less than 30 mins. to the beach, swimming pool and loads to do in the local area.

If that doesn't suit, don't hesitate to post and I'll help as much as possible for the area around Biarritz and the Pays Basque.

Hi,

have a look ate

http://www.southfranceholidays.com

They are a family run gite business that are based 5 minutes from Carcassonne. Loads to do around here for the kids. The Lac du Cavayere has water sports, golf, and a large tree adverture playground.
http://www.carcassonne.org/carcassonne2.nsf/agcGeneral?OpenFrameSet&Frame=Contenu&Src=vuetitre/docVisiterDetendre1?OpenDocument

the Cite du Carcassonne was where Robin Hood Prince of Thieves was filmed and is the llocation for Kate Mosses latest book, Labyrinth as well as being a UNESCO heritage site.

I am probably biased as I live here and love the place! and so do my kids.

Hope this helps

Denyse