Dec 2013/Jan 2014 - 12 Days Swiss Trip

Hi All, I need help with planning my iternary as well as advice on which swiss pass to purchase. We are 2 Adults and 2 kids age 6 and 9

Day 1 - Fly in to Geneva. Train to Montreux - Overnight in Montreux
Day 2 - Explore Montreux and Laussane (Please advise on interesting thing to do) - Overnight in Montreux
Day 3 - Golden pass from Montreux to Interlaken via Zweissemen Overnight in Interlaken
Day 4 to Day 8 - Overnight in Interlaken - Visit Jungfrau and other day Trips (Please advise on day trips - Spiez, Thun Bern) We would also like to do some sledding.
Day 9 - Train to Lucerne Overnight in Lucerne
Day 10 - Titlis Overnight in Lucerne
Day 11 - Pilatus Overnight in Lucerne
Day 12 - Train to Zurich

Kindly assist with the above iternary. Much appreciated.

Hi evans! While in Montreux, you could visit Chateau de Chillon and the town itself. A boat trip over Lake Geneva is an option too. As for further tips: Thun and Bern are nice towns to explore. You can visit lots of viewing points in the Jungfrau region during your stay in Interlaken, such as Kleine Scheidegg, Schilthorn, Männlichen, First, and so on. Do check webcams and images displayed at the valley stations: while it may be foggy in the valleys, there are chances of beautiful clear skies up in the mountains!

Your itinerary looks fine to me. Traveling times can be checked with the aid of the timetable. If you're planning a scenic train trip, such as the Golden Pass on day 3, try to travel with daylight; sunset is early (about 5 pm), especially in December.

As for a rail pass: a 4 day Swiss Saver Flexi Pass is worth considering. You'd use free travel days on day 1, 3, 9 and 12 and profit from a 50% discount on the remaining days. A 15 day Swiss Saver Pass could be an option if you prefer flexibility in terms of free traveling, adapting your plans on the spot, not having to buy tickets for each trips, and so on. Which pass is the most economical solution, can only be calculated based on a detailed list of day trips.