Warnemuende is actually part and parcel of the old Hanseatic town of Rostock. In fact, it is only 10 miles north of Warnemuende making it very easy to hop a local train to get there. The train ride is a short, pleasant one. along the route you will large apartment blocks, garden plats, some with their own little weekend garden huts, the Warnemuende Werft, etc. On arriving at the Rostock train station, if you feel like walking from the train station to the center of Rostock, it is approximately a half mile or maybe more into the old town center. TIP: your train ticket will be good for the streetcar from the train station into the old town center and back and that will save you energy and more time for sightseeing. You will not miss any sights by skipping the walk into the town center.
We arrived on a Sunday, and things in the old town square were pretty quiet. We did find an open Tourist Information Office, but in general we were pretty disappointed there was no activity and everything seemed to be shut down. Of course, maybe we didn't venture enough. If you are in Rostock on a weekday, try to see The Rathaus (Town Hall), Marienkirche, the Rostock Brewery, and the Kroepeliner Gate and city walls.
Purchase your 3 Euro return ticket at the station in Warnemuende (Track 3) and enjoy your ride.
This is just for me and some happy few record collectors. The store is called COAAST and you can find it in front of the Lighthouse.