South of Zurich, the Andermatt area makes a great snowboarding base for exploring the entire Gotthard Oberalp Ski Arena. The Gotthard Oberalp Ski Arena encompases three distinct ski areas, including Gemsstock, Natschen and Sedrun-Oberalp, with a total of 125km of pistes served by 20 lifts. The Gotthard Oberalp Ski Arena is known for its freeride ski routes and not really known for its terrain parks.
The best known of the three ski areas in the Gotthard Oberalp Ski Arena is the Gemsstock. Located just south of Andermatt, the Gemsstock is well-known with extreme freeriders and backcountry snowboarders, and to many, rivals both Chamonix and St Anton. In addition to a couple marked off-piste ski-touring routes, there is plenty of off-piste backcountry powder accessible from the Gemsstock summit, and there is backcountry access off the backside as well. The lift-accessed, off-piste terrain is considered one of top three destinations in Europe. Just keep in mind that off piste routes have significant avalanche danger and may have glacial crevasses.
Start by heading up to the 2,912m high Gemstock Mountain for a spectacular panoramic vista of more than 600 summits -- then cruise down the infamous Bernhard-Russi-Run over St Anna Glacier and Gurschen Glacier. Follow this up by continuing down the yellow freeride route all the way back into town.
When heading off-piste on Gemsstock, you may wish to hire a guide, such as Bergschule Uri (bergschule-uri.ch), since there are plenty of cliffs and couloirs. The best freeride routes, which make Andermatt famous, are not on the official lift area map. You may wish to check out snowlimit.ch for GPS tracks and also consult with the folks at Internet Cafe 61 Gotthardstrasse about the snowboarding freeride routes.
After a morning of snowboarding Gemsstock, try fueling up at the mid-mountain Gada Bar at the base of the Lutersee t-bar.
Apres ski tends to be an in-town affair since there are no bars at either the Gemsstock or Natschen base areas. Try checking out the Himalaya Bar, then Spycher, and then Di Alt Apothek, but don't get your hopes up since they will all be pretty mellow (especially mid-week).
If you're looking for an authentic Swiss dinner, then try the Gasthof Ochsen, the Gasthof Sonne or the Gasthaus Tell.
And, if you can make it to late-night after a long day of ripping it up, try heading to the Schlesselbar or De Prato.
The base town of Andermatt is a charming village that is over 800 years old. It is known for its rambling streets with granite houses. Sadly, there's a lot of development pressure especially on the edge of town. Located on the Gotthard Massif, the region has a very good record for annual snowfall capturing storms from the west, south and even north. And, luckily, most slopes are north facing and hold snow well. By the way, some older literature still mentions the Winterhorn lift system based out of Hospental west of Andermatt -- this lift system is permanently closed.
To reach Andermatt snowboarding from Zurich by train, you'll take the regional train through Luzurne to Goschenen. In Goschenen, you will switch to the Matterhorn Gotthardbahn cog railway for a 15 minute ride up to Andermatt.
To reach the snowboarding in Andermatt from the east in the Canton of Grabrunden, you will need to pickup the Matterhorn Gotthardbahn railway starting in Ilanz. It will run west through Disentis and Sedrun heading over Oberalppass to Andermatt.
Tip: Since the weekends can be crowded, hit the early Saturday cable car up Gemsstock which starts at 08:00 (verify since it is sometimes 08:30). If possible, avoid snowboarding Andermatt on Sundays which are the most crowded day of the week. By the way, if your snowboad is in need of service, try out the Alpina Sport, which offers an excellent wax and edging at a reasonable price (same day, too).
Note: If you plan to head to Andermatt for snowboarding by train, here are two great options offered by the Swiss train system SBB. First, there is the discounted Swiss Transfer Ticket which provides a round-trip train ticket from an airport directly to the town near the ski area, plus 50% off any additional train or bus tickets. Second, there is the Snow-N-Rail ticket which provides a round-trip ticket from anywhere in Switzerland combines with a ski lift pass for as long as you need at a total 20% discount (see: http://www.sbb.ch/snownrail ).
Overall, Andermatt is the 6th most popular snowboard & freeride destination of all 68 snowboarding resorts in Switzerland.