Do I hand it in to the Kanton here, or give it to DVLA in UK?

I understood it that you gave it to the DVLA... checkout the government's website http://www.direct.gov.uk but you know how it can be sometimes. Hearsay.

I'm the exactly the same case.
two weeks later I'm heading to UK.

Could you share your experience?

Depends on your license. There's more info here.

Keep it, always ususful to have 2 licenses....

My problem is I'm Korean(Republic of)
and got Swiss driver license but failed to extend permit.

Now I'm heading to UK with T2 ICT for 5 years stay.

I should check it on Monday when I de-register my car here in Bern.

I believe there's a DVLA form available in all UK post offices that you fill in to swap your Swiss licence to a UK one.

Don't hand it in, you can get a copy of your driving record before/after leaving as a record of your Swiss entitlement if you come back.

UK will usually exchange A&B categories perhaps fklnp depending on when you passed. The question is does the date on your CH license show the Swiss pass date or your Korean?

UK is only obliged to exchange EU/EEA licenses. As CH is not in but is a recognized country, keep this in mind. As you're coming from a non-EU country you'll be absolved from the 6 month waiting period for EU residents with EU/EEA licenses. Good luck!

Thanks for the replies I filled in DVLA form D1 and they will send a UK license to me within 15 days. I have to do this within five years of being in UK. All at no charge too if you have had a UK license before. Very generous of them...