Chepstow Motorhome Show

Hi folks, we're thinking of heading over that way and wondered if anyone has actually stayed on the racecourse for the duration of the show.
There isn't any info on either the racecourse's  or Appletree's (who are putting the show on) websites about what facilities are available.....you know, hook ups, toilets & showers.
Hoping someone on here can oblige, rather than contact them direct and end up on their mailing lists for the rest of the millennia.   

ta.