last year I booked a 2-day SIV course at X-DreamFly (http://www.x-dreamfly-siku.ch/), but due to bad weather it didn't take place.
I did some other training, so I don't need this any more and I can sell the course to somebody else. The course can be taken at any destination and at any chosen time. The current offers are listed on the X-DreamFly website:
[UPDATE: It's sold]