In the Interlaken area I believe in the high Alps there is a thunder storm somewhere just about every day and can come up rather suddently - always brings rain gear with yous.

" I have not heard about this route into Jungfrau region via Meiringen"
Meiringen IS in the Bernese Oberland from where you can easily cross the Alps over different Passes:
Susten Pass (Post Bus)
Grimsel Pass (Post Bus)>

Indeed Meiringen, home of meringue, is in the Berner Oberland - just off Lake Brienz and by Reichenbach Falls - there is a popular Three Pass Tour by Swiss Postal bus from Meiringen and back to Meiringen that goes over the Susten, Grimsel and Furkha passes in a loop - I did it a few years back and it was awesome.

A neat way to reach Meiringen from Grindelwald is to take the Grindelwald Bus to Schwandi (sp?) then a postal bus down past Reichenbach Falls to Meiringen.

neckervd - do you know if Wengen/Grindelwald to Jungfraujoch is 50% off with the Half-Fare Card? Is everything that moves in Switzerland 50% off without exceptions - I can't seem to track that down but believe it is so.

any knowledge you have about that is appreciated!

Cheers

" A neat way to reach Meiringen from Grindelwald is to take the Grindelwald Bus to Schwandi (sp?) then a postal bus down past Reichenbach Falls to Meiringen"

Rather SCHWARZWALDALP than Schwaendi.

The trip is nice, but the connections at Meiringen (for Grimsel, Susten and Engstlenalp - Titlis) are usually extremely bad

"Is everything that moves in Switzerland 50% off without exceptions"

The map sts-gb-pass-s-15-web.pdf shows you where the Half Fare Card is valid.

The most important train/boat/bus/gondola lines where it is NOT valid are:

Geneva - Evian/Chamonix - Vallorcine - Le Chatelard Frointiere(bus and train)
Evian - St. Gingolph (bus)
Ferney Voltaire - Gex (bus)
Saleve gondola
boats on Lac de Joux
boats on Lac des Brenets
Le Chatelard - Emosson (rope railway, mountain railway)
Les Marecottes - La Creusaz (gondola)
gondolas of Leysin
chair lift Champex - La Breya
gondolas of Verbier - Haute Nendaz - Thyon
bus Aosta - Martigny if you buy the ticket in Italy or in the bus
gondolas of Crans-Montana
cablecar and gondolas of Val d'Anniviers
gondolas of Adelboden and Lenk im Simmental
cablecar Handegg - Gelmersee
gondolas Trift and Sidelhorn
Furka steam train
gondolas Gersau
all gondolas in Canton Uri except Andermatt-Gemsstock and Schattdorf-Haldi
all gondolas in Canton Ticino except Locarno - Cardada and Rivera - Tamaro
all boats on Lake Maggiore
bus Lugano - Porlezza - Menaggio
bus Ponte Tresa - Ghirla - Luino
bus Ponte Tresa - Porto Ceresio
Capolago - Monte Generoso (cog wheel railway)
bus Brissago - Cannobio - Intra
bus Cannobio - Malesco
all gondolas in Canton Glaris
all gondolas in Canton Grischun/Graubuenden, except those of Chur, Rhazuns, Sils Maria, Silvaplana-Surlej, Scuol/Ftan
boats on Lake Sils
bus Spluegen - Monte Spluga - Chiavenna
German boats on Lake Constance which don't touch Swiss ports
trains Basel Bad Bf - Bad Saeckingen - Erzingen (- Schaffhausen)
boats of Neuhausen and Eglisau

The most important train/boat/bus/gondola lines OUTSIDE SWITZERLAND where it is valid are:

Coppet - Divonne-les-Bains - Gex (bus)
Lake Geneva boats touching French ports
Travers - Pontarlier (train and bus)
(Martigny -) Bourg St-Pierre - Aosta, if the ticket has ben bought at a Swiss ticket counter (bus)
Brig - Domodossola (train and bus)
Domodossola - Camedo - Locarno (train)
Ponte Tresa - Fornasette - Luino (bus)
Lugano - Chiavenna - St. Moritz (only Swiss Post buses)
Lugano - Tirano - Stelvio Pass - Mustair (only Swiss Post buses)
Bernina Pass - Livigno - Zernez (bus Silvestri))
Martina - Nauders - Mals/Malles (bus SAD)
Mustair - Mals/Malles (Swiss Post Bus)
Nauders - Pfunds - Landeck (Austrian Post Bus)
all bjuses in Liechtenstein, up to Feldkirch
Lake Constance boats Rorschach - Lindau, Romanshorn - Friedrichshafen, Kreuzlingen - Mainau Island, Kreuzlingen - Meersburg
Stein am Rhein - Ramsen - Singen (German bus)
Schaffhausen - Ramsen (Swiss bus)
Schaffhausen - Lottstetten - Eglisau (train)
Flueh - Rodersdorf (tramway)
Boncourt - Delle (train)

Thanks neckervd - So I gather that the Jungfrujoch train is half-off since it is not on your list of things not covered - again thanks for taking time!