Location
To get to Öland you could either:
-fly to Stockholm Nyköping (NYO) with Ryanair (very cheap flights, from £20 return) and rent a car. The journey from Nyköping takes 3 1/2 hours and is very pleasant with beautiful scenery on the way.
-fly to Stockholm Arlanda (ARN) and get a connecting flight to Kalmar. Hire a car in Kalmar and you’re 30 minutes from the cottage.
-fly to Stockholm Arlanda, travel to Stockholm Central Station and get the bus straight to Öland.
-fly to Copenhagen, Denmark and get the direct train to Kalmar.
It is useful to hire a car during your stay as it allows you greater flexibility.
Useful links:
http://www.olandsturist.se/en
http://www.smaland-oland.com/