Potsdam is located in the south-west of Berlin, Germany. There is a 5 min connection from S-Bahn line to Potsdam. S-7 is most frequent on this Route and all you need is a A+B+C ticket which cost 2.90 Euro one side or better buy all day A+B+C ticket which cost around 6.0 Euro and you can travel anywhere in ABC zones all day. Even you can ride on buses in Potsdam with all day ticket.
I heard alot about Postdam from Simon and Evi, and one day James added more about Potsdam. However they also mentioned in winter its not as beautiful as summer, but I was there for winters and couldnt miss this opportunity. I bought all day VBB ABC zone ticket which cost me 6 Euros and headed to Alexendraplatz and from there I took S-7 to Potsdam Hbf. which took around 25 mins to reach Potsdam Hbf. I was searching for Bus to Sanssouci park and after wasting lot of time on bus station I found mostly every bus goes near Sanssouci Park. It was a cloudy day and I wasnt expecting much but as i stepped there comely greenery took my breath away. But it didnt hold for long as there was some G-8 thing and helicopter noise ruined the peace over there. Secondly, all artwork was covered as they were protecting them from German winters. Lastly maintance work was a lot at that time. probably I made there in wrong time. But nevetheless I enjoyed and found it passionately romantic place. Visiting a castle is not quite easy, you need an advance reservation for visiting castle, thats why I missed castle.
Potsdam city itself a well oriented and a bit expensive than Berlin, but here you feel quite different, life has slow pace and lots of place to shop on streets which gives it a romantic feel. There is nothing much you can do if you are alone here, but a family, girlfriend and friends could really make it more fun. Potsdam also have lots of places to see like Einstein Tower, Bradenburg gate, University complex. Some people thinks they need 3 hrs for potsdam but according to me you need at least 2 days to have a deep look at Potsdam. In the end I had a coffee at authentic cafe and I moved back to Berlin. While I was in Berlin I made 3 trips to Potsdam and hopefully I’ll make more visit there.