We don't live anywhere near a beach and so DC would love to have reasonably easy access to one at uni. Somewhere you can walk to or take public transport to on a weekend day say, if you wake up and feel like it ( as opposed to needing to plan in advance and get up at 5am). Or even closer would be amazing.
They are looking at doing a traditional academic subject, so Bournemouth for example, although it looks fab, would probably not be the best choice. Beach proximity cannot be the first filter!