Пост в Gothenburg, Västra Götaland County, Sweden

Hey, Please if you have any tips about restaurants, shops, little villages that we would not miss ,any interesting thing let me know  The itinerary is this: 13th of August from Rörvik to Stromstad – we take a boat to NordKoster, we stay at the camping 14th Fjalbacka – stay here one night – any recommendation what to do around? 15Th vistit to Smögen and? Can you suggest others super nice villages? 15th night, where to sleep between Smogen and Göteborg? 16th Göteborg – any suggestion which are is the best? More local and lively? Do you know any vintage shop where I can buy traditional Swedish porcelain and pottery and second hand clothes? Thanks in advance for your help!