world CLIMBERS party
There is good climbing close to more or less all major cities.
The only world class climbing area in Sweden is Bohuslän.
Gothenburg / Göteborg has some really decent climbing as well (sport, trad and bouldering) and is only 50 miles down the coast from Bohuslän.
South of Stockholm there are quite a few, mostly shorter crags, with a variety of single pitch trad- and sportclimbing.
The best single sport climbing crag in Sweden is in Niemisel in the north.