Hi Tony.
I went to exactly the same place a couple of weeks ago looking at somewhere local to get some casting tuition, only to get the same response as you. I asked if there was any alternatives locally, and was pointed in the direction of
Felix Farm Trout Fishery | The Fishery
I've not fished it yet as I'm a complete novice and still learning the art of casting!!!!!!! But it looks very appealing, and the day ticket rates and boat rental are seem very reasonable. Defiantly worth a look.
Good luck & tight lines
Paul