Apr 16, 2016 - 8:46 AM
in reply to Mountain777
Hi Mountain777 -
Here is start on #3.
You could use one base, or, at most , two bases.
For a base in Switzerland for four or five nights in May, Luzern (German spelling) should be your first choice.
Lots of variety near by, good transport connections. It is Spring. Up in the Alps, in contrast, you are at the tail end of winter.
It is a bit early to really appreciate the Jungfrau region. It is between seasons- too late to ski, but still too much snow to hike, so many transport options and trails are not open. However, the expensive trip up to the Jungfraujoch runs all year, and the less expensive part of the trip (Lauterbrunnen to Kleine Scheidegg to Grindelwald would be very scenic as long as the weather is clear.
It is best to stay at least a couple of days in that region, for a better chance to have clear weather in the Spring.
Many places are reasonable day trips from Luzern....even the Jungfrau is possible, but that one is a very long day.