This is the reason many non holiday makers go to little Skärhamn. Placed out on the cliffs is the Danish designed water colour museum with just the one main exhibition area but also with a fantastically placed restaurant (see tip). There is also a "try it yourself" water colour studio where both children and adults can become artists for just the small cost of materials (tickets are bought in the ordinary ticket office) and much of the rest of the building is there for education and research. If you get inspired, there is a walking path out on the cliffs outside where you can carry on - just stock up on material in the shop :)
Few places even on the west coast have an ambiance like this one. Enjoy both the food and a great sea view in this museum restaurant. We just had coffee and cake so I cannot tell you what the main courses are like but judging by their price and the popularity of this place, they must be good. Use the second link below to read more in English and the first one for more pictures.
A very cosy restaurant with a befitting marine theme throughout and full of friendly staff as well as chatty locals. It's the sort of place where people talk to each other across tables. The menu consists of four or so main courses on a blackboard and a few pub snacks for the peckish. The chef had high ambitions for such a small place when we visited and it was quite nice. Summertime, there is a veranda with a harbour view.
Favorite Dish: Skagen fish with gorgeous potatoes...though I'm told the lamb is good when it's on the menu :)))
To get to Skärhamn by public transport, you have to catch a bus from Stenungsund on the mainland north of Göteborg but that's not too hard once you check the times using the link below.
Favorite thing: Skärhamn is full of cliffs where you can walk around, finding your own little resting place. There are some very nice paths at the back of the Water Colour Museum - perfect for a romantic evening too :)