Even in the English deep wid-winter of April, its a nice day out. We took the dogs, mainly for a bit of a walk, but we were quite surprised we could also take them on the train too, so we did. Its nice that its quite flat, but you can go off-path in some area's should you want to. The parking seems straightforward and organised and there are lots of refreshment facilities available should you want to. One word of caution; Google Maps navigation will try and take you to the boat house/marina where there isn't much parking. Instead, follow the signs off the A5 and you'll be in the right place.