I seldom buy ice creams but I found that especially in Koper, the shops that sell ice creams are strongly mouthwatering for ice cream lovers! Look at this one! If I had not restrained myself, I might have taken dozens of such photos but one is enough!
just sit in a bar by the coast an have a tiny cappuccino - served in a glass - Koper got this from Trieste, don't search fot it in Ljubljana...
an alternative is have a cup of nice local wine - the region is well known for the red wine refošk/refosko, and the white one "malvazija". you can have it in all bars, but for special ones i suggest the site: http://refosk.obala.net/
"osmica" is where you get new wine in oct/nov, several cellars: http://www.osmice.info/slo/
Just a map of Slovenia so that you know where Koper is situated.
There are buses every 20 minutes to Izola, Strunjan, Piran & Portoroz.
Every 40 minutes on the weekends.
About 17 buses a day back & forth from Trieste in Italy. None on Sunday.
Koper is a good hub to explore Croatian Istria.
If you take a walk along the seafront, you might be led to believe that Koper's culture consists of rollerblading, cycling and jogging. Anybody who is anybody owns some rollerblades, and there is a special path for pedestrians, cyclists and skaters to follow south from Koper, maybe all the way to Izola. So get yourself some skates and follow the coastline to get views like this...
I really don't know if it is a local custom or not, but if you happen to visit Koper (as I did), don't miss the sunset, at least, the one I was lucky to see was fantastic.