<human>: Summarize the given text in a few sentences.

I'll try to be brief as possible. I greatly appreciate any help / advice!

**PREFATORY INFO**: I am a 25 M traveling w/ my girlfriend, 23 F. I have a great deal of traveling | backpacking experience, while she has not yet been abroad. We are leaving **Sept. 3rd** and returning **Oct. 4th**. We are departing from Dulles and landing in Paris (CDG). Our budget is (excluding airfare) $10,000.

My primary question is––especially regarding traveling to and from the UK / Ireland––whether our itinerary is realistic. I've never traveled to Ireland from mainland Europe (we're going RyanAir), and am worried about it taking too much time and money. 

Our main aims are for France + UK/Ireland +  Switzerland 

**ITINERARY** [with Paris as a 'home base' of sorts]: 

Paris --> London --> Wales (Betws Y Coed) --> Dublin --> 'Irish Countryside' --> **|** *return flight to* Paris --> Grenoble --> Lausanne --> Interlaken --> [*maybe*] La Spezia --> CDG + departure

**So, is this realistic?** 

We've budgeted and planned thoroughly, so if you'd like more info (such as planned length of stay in each location), I've probably got it.

P.S. I'm using Paris as a staging area because I'm quite familiar with the city, I speak the language, it's generally centrally located, and it's the place my g/f is most excited about.

Thanks so much!
<bot>: Going for a month to Europe. We're concerned our itinerary is too ambitious––especially the traveling to and returning from the UK section.