Natural Sciences; Bath, Durham or UCL?

Yeah I'm coming round to that idea now... 1 day left to change it and I'm really panicking. I just don't know! And I know I'll regret it later...

Hello! I'm a bit worried about my Uni course. I'm going to study NatSci next year and have offers from Bath, Durham and UCL (and Nottingham but I've already decided against that). Bath and Durham are A* in Physics offers, but UCL is unconditional. I've visited all three (though only Bath on an open day-snooping round a Uni when you're not supposed to be there is no fun), and I didn't really like UCL because I'd miss the countryside and open spaces. I finalised Durham with UCL as insurance yesterday, but I've got cold feet now. The Bath course was an MSc like the others, but it was 5 years, one year abroad, whereas the others are four years. I'd quite like a year abroad. I didn't like Bath campus that much, but I don't like the look of the college I've been allocated at Durham much, and now I'm just confused. Any advice appreciated, thanks.