Walk around this lake in the south of Stockholm and in the summer you can take a swim.

If you want to try something outside the city center this is a really beautiful small gem. They cook delicious seasonal food and have a nice selection of cheese and charcuterie for your wine. Best to book table beforehand. 

Attraction and rides but also a place for theater and stages performances.

A safe bet for some cultural stimulation on the island Skeppsholmen in the centre of Stockholm, great location with a nice book/design shop.

I like the round bar, it opens up to conversations with new people.