It is quite easy to get around Europe, you will need a passport, but that's only at certain country boundaries. You can get from england to Scotland or wales without a passport.
Austria is amazing. The views are spectacular and there are lots of wild marmots, alpine choghs and ibex. There are also a few zoos in Austria, Alpen zoo a very steep zoo and then there is vienna zoo. I have not visited it yet.
Switzerland also has a beautiful landscape, This is wher I saw a wild ibex, and nearly touched it. I have visited two zoos over here, basel a real city zoo and Zurich one of the best zoos I've been too. Their tropical madagascan house and their reptile/tapir/penguin house are magnificent.
France is a very nice country if you're a wine fan. Lot's of vinyards and lovely landscapes to sit and drink some wine. I've only been to two of the many french zoos. Lille and Paris zoo. I don't know which paris zoo it was, but it had okapi, Bontebok(or blesbok) and a herd of gazelle. Lille is a free zoo and is not brilliant.
In Belgium there is a wonderful town called bruges that I've visited lots of times, and if you stay here, I recommed the princenhof hotel (I do hope I've spelt this right.) There are lots of wonderful chocolate shops here, and there is a very nice shop that sells lots of the schleich animal range. There is a train station that can take you to Antwerp zoo which is a very nice place, but to get to what I think is one of the best bird parks in the world, Parc paradisio, you will have to rent a car and take it up to the park itself. There are lots of hornbills and Parrots and Storks, Shoebills It's a beautiful place.
In England there are a lot of options, there may be a spare oom at my house zooboy, but we may have to dicuss it!! There is Jersey zoo which is a nice small zoo on Jersey. I recoomend the Meron hotel in Jersey. A nice swimming pool here. Chester and all the other zoos are explained above. I have only stayed in Scotland once, but I can't remeber the name of the hotel.