OK, it's definitely not easy. We've chosen a wonderful location (not telling you before it's booked, I don't wanna jinx it... but of course you can always google me...) and are now fighting for our dream wedding. And fighting hard.
So here's what you have to do if you're planning to have a wedding in Switzerland:
1) Go to (the homepage of) the Etat Civil/Register Office of the location of your choice. In the case of the Bernese Oberland it's the Office of Bern, where you have to chose the arrondissement, the village or town and then apply there.
2) You'll need a demande en vue du mariage, which means that you apply for a permission to get married in CH. If you've both filled in the form and signed it you have 2 options: A) bring/mail it to the Register Office and have them give you a list of the papers you'll need to gather (and sometimes translate) and when you have them you can hand in the form accompanied by the documents OR B) you can start preparing the following documents and bring them with you to see if they're enough.
IN MOST CASES YOU DON'T NEED ALL OF THEM so you might contact the Register Office beforehand but the thing is they weren't willing to inform me before I fill in a form :-s
- attestation de domicile (home address confirmation or sg like that =D)
- proof that you're widowed/divorced if you're either
- acte de famille (we don't need this)
- birth certificate (not older than 6 months!)
- proof you're not married (attestation d'etat civil actuel -- from the place of your home address!)
- affidavit (we don't need this either so I have no idea what this is =D)
- acte du précédent mariage (obviously)
- proof of your ever changeing your name (after marriage, divorce or fashion =D)
- passport, ID (obviously)
- birth c. of children
- their "adoption" by you (you had to do this apparently when they were born, if you're not married)
- proof of their nationality
- declaration of your name after the marriage (that is if you're doing anything other that "common" in CH)
Some have to be translated (not passports of course) and some need the pricey sigil of the Apostille.
So. Now we're busy doing all this. I hope this helps if you're thinking about having your wedding in Switzerland.