Details of many of the college open days in East Sussex and Brighton and Hove are on the Sussex Careers Serivces web site . If the college you are interested in is not mentioned, contact them direct. Of course there is also a myriad of HE study opportunities outside Sussex. Use these links as starting points to find out more. Search UK universities by subject and location.
Information includes a student population profile, list of courses and open day details.
Links to university web sites are not always given, instead access university home pages from here or here . Use the list of university physics departments provided by PhysLINK - The Ultimate Physics Resource Adult education A wide range of adult and community education courses are run throughout the region.