I'm doing Zoology with Marine Zoology.
Bangor has a good rail link to Anglesey and the rest of north Wales (like Llandudno-Prestatyn), all of which are very popular with tourists, so assuming Covid restrictions are lifted by then, there should be a lot of options for jobs, from cafes/pubs to hotels and guest houses and everything else. Plus there's the Anglesey Sea Zoo, Snowdonia Donkeys, and the Welsh Mountain Zoo (to name a few) that you may be able to work for, especially in your 2nd/3rd/4th years.