Lastminute.com reviewer Richard says, "Weather was nice 50%, torrential rain 50%. So typically [S]wedish. The Universeum is great fun for kids, and has a good selection of fun things to do, and Liseberg is a great theme park full of a good range of rides, from the most tame to vertical roller coasters. Good range of food and drinking options, and you are less than an hour away from some great nature spots.
Sightseeing places: Liseberg, Universeum, river boat tour, Alingsas, Slottsskogen park.
Kid's experience: Universeum."