They grow a HUGE selection of fruit and vegetables for you to pick from May to September. The cropping seasons starts in May with you being able to pick your own asparagus, and ends in September with Raspberries, Plums, Apples, Runner Beans and Sweetcorn. They have a great website (http://www.copasfarms.co.uk/) that has a chart showing what they are cropping in each month, as well as an updated list of what they are currently picking. They even have a 24hr telephone number that has a recorded message giving you up to the moment information on what is available.
They allow you to have a taste of the food that you are picking, but not to blatantly just eat as you go round, and they have many signs up telling you that nothing is free and not to eat anything. My nephew has taken note of these signs. So as we were picking the peas in the pod, I opened a pod to try to see what they were like - much to the disgust of my nephew, who thought we were going to get into trouble. I tried to get him to taste a single pea - but he wouldn't have it as he thought we would get kicked out or not be allowed to leave.
If you want to go and get the freshest produced bang in season, then you should get yourself down to your nearest pick your own farm. Not only is it great fun (we had a gloriously hot sunny day, and took a picnic along), but you are also getting produce as fresh as you can giving you the taste you do not get if you buy it from a supermarket.
They also have a farm shop selling various other local products. I picked up a bottle of something that I had never used before - Cold Pressed Extra Virgin Rapeseed Oil. It comes from a farm in Tring called P.E Mead & Sons. I look forward to using that soon. I've already set my reminder to go back in May and pick my own asparagus......