Can you guess?

Here's a painting showing a street in the country I'll be visiting this October. With Peter, my friend, and seven more, artists mostly. We'll enjoy the landscapes, beautiful beaches, the (but Gibraltar) southernmost cape in Europe, old temples, historic places, meet artists, trade unionists and politicians, feast on delicious food and wines in small taverns with the most lovely views onto the sun setting over the bright blue sea.
Now where would that be? If you don't know by now, check here for more details.