This clever extension lead outside socket box will make your camping trip much easier, you can plug the 16amp plug into the site electrical supply and at the other end is 2 13amp sockets just like at home.
The outside waterproof double socket comes with a lead (of length that can be specified above) complete with a 16Amp plug.

The box comes complete with IP65 gland connections to keep the plug box water tight and completely safe. 

Comes Pre wired.

WITH BLUE CABLE