Plymouth Marine Laboratory come to us every year for IY students, and we have often had more than one student there. It’s a nice location, and (as I remember) largely a Linux establishment.
So this one is definitely worth a go if you like the sound of it!
https://advanced.advorto.com/pml/VacancyInformation.aspx?VId=21068#.XGbC3Xd2uUk