Hi Thalia
Just got back from Christchurch earlier today. Stayed at Grove Farm caravan park which has access to a good section of the Stour where quite a few decent sized Barbel have been coming out over the last few days. The section is opposite the golf course near a weir. The levels looked good to me & only clear in the shallows. Remember we've recently had a few downpours which has coloured up the river.
Definitely, worth a go pack your gear & get down there!