Ooh, where is it? Is it new? I don't recall seeing one when we last visited. (Though thinking about it, that's probably a good few years now. Glum.)
There's a lovely bookshop in Marlborough, with an art gallery attached, for anyone vaguely in or visiting that area. There's also a specialist SFF bookshop in Lymington which I'm hoping to get down to see sometime this/next month for those of us on the South Coast.
And yes, I popped into Waterstones in Winchester today to check, and it's Science Fiction, Young Adult and Manga in that alcove -- no heading of Fantasy, though the alleged SF section was full of it, and I'm sure the YA section has grown since we were last there. In Waterstones' new shop just opened in Romsey, the YA and Manga together have what seemed like twice the shelf space as the "SF" though to be fair there is a separate table which is YA free which adds a few more SFF titles.
In my innocence, I thought romantasy was classed as YA, so I was hoping to avoid it by ignoring that section! Any tips for recognising it if it doen't carry a big "THIS IS ROMANTASY" label?!