The Club normally does Brands Hatch in September and have also in the past done Snetterton and Silverstone.
The cost varies from track to track and could be anywhere between £150 and £300 per driver. Brands, Cadwell and Silverstone will be nearer £300 whereas Snetterton, etc. will be cheaper.
There are some non-club days organised by various members that might be of interest e.g. this one here.
Yellow SL #32