Hi Ina, and welcome to MySwissAlps!
>> I am traveling with my husband & 2 kids (10, 14) in early June ... If we have picked good activities with a mix of experiences - Trains, Cable cars, cruises, hikes & playgrounds for kids & adults
It looks like a good itinerary. You are the best judge of how well it meets your family's interests ;-)
>> What is the best rail pass or passes to get
On the face of it, the Regional-Pass Bernese Oberland looks like a good choice, although you would have to supplement it with tickets between Zürich and Bern or Luzern/Lucerne. It is also not valid for boat trips on the Vierwaldstättersee (Lake Lucerne).
Some differences between the Regional-Pass Bernese Oberland and the Swiss Travel Pass:
- Ballenberg - free with Swiss Travel Pass (STP); 25% discount with Regional-Pass Bernese Oberland (RPBO)
- Oberhofen and Hünegg castles - Free with STP; 20% discount with RPBO
- Schilthorn - Free with STP; 50% discount with RPBO
- Swiss Family Card - Free if ordered with Swiss Travel Pass for parent/s. Not available for use with RBPO, but can buy a Child RPBO for children at CHF 30 each.
On the whole, the Regional-Pass Bernese Oberland would be a convenient choice, but if you want to know whether it is also the most economical choice, you would need to do the sums: plan your itinerary in detail, including all trips by train, bus, boat and cable car. Then look up the full-fare cost of all these planned trips and compare the total cost of separate tickets with the cost of doing the same trips with the Swiss Travel Pass, Regional-Pass Bernese Oberland, Swiss Half Fare Card etc.
You can find fares in the Swiss Timetable.
(Use the timetable on the right with the red SBB logo)
It is important to be aware that the fare shown for any trip in the Swiss Timetable defaults to half fare, as most Swiss residents will have a Half-Fare travelcard which entitles them to this discount. Your calculations need to be based on full fares, which are double the default fare that comes up.
There is information and a spreadsheet here to help you:
www.myswissalps.com/tr ain/ticketspasses/prac tical/chooserailpass
>> Day 4 ... Visit a one/couple of castles in the area
Schloss Hünegg and Schloss Oberhofen are open (but closed on Mondays). Schloss Schadau is closed for renovation until June 2019.
>> Day 5 - Wengen - Murren - Schilthorn -Wengen (Activities - Allmendhubel “Flower Park” Playground, Muggestutz Storybook Theme Trail, Bond Museum)
The funicular from Mürren to Allmendhubel is closed for maintenance from 9 April until 22 June 2018.
The Muggestutz trail is near Meiringen.
>> Day 6 Bachalpsee Lake (hike there) or Maennlichen (hike the romantic Maennlichen trail)
The trail from Männlichen to Kleine Scheidegg is usually not open before about 15 June. The local tourist offices will be able to advise you which trails are open when you are there.