"This guesthouse stands on a traffic-free, picturesque island in an unspoiled archipelago, a 20-minute ferry ride away from the mainland. Open daily from May to September, Lunch 160 kr."Jazzå Bar & Restaurang http://jazza.nu/
"Second Longstreet is where street fashion and antiques meet sleaze and pornography. Jazzå is one of many bars where regulars crowd for a fish soup, 135 kr. and a beer"
And at last
"Gothenburg is easy to explore on foot or bicycle. Free walking and cycle maps can be picked up at the touristinformation"
So now if you don´t have something to do, this mait be something for you. Be an tourist in your on town for a day! Good luck!