The closest large town to Bäckaskog Castle is Kristianstad (see map).
A bus will be provided to transport conference attendees from Kristianstad Central Railway Station to Bäckaskog Castle. This bus will operate on Saturday June 13, every hour between 14:45 and 19:45. Each bus can accommodate 50 people, passengers arriving in excess of that may be asked to wait for the next shuttle.
The bus will operate again on Friday June 19 between 6:00 and 11:00, to return attendees to Kristianstad Station for departure.
A train service to Kristianstad Central departs from Copenhagen (Kastrup) Airport. The direct trip (Track 1) departs hourly, on the hour, takes 1h 34m and costs 300 SEK one way.
Taxi services are available from Copenhagen (Kastrup) Airport and Kristianstad.
Copenhagen Airport to Bäckaskog Castle will cost approximately 3000 SEK
Kristianstad Central train station to Bäckaskog Castle will cost approximately 650 SEK
There is a bridge between Copenhagen and Malmö: Oresund Bridge
There are also car and passenger ferry connections to southern Sweden:
Another possibility is to take the ferry from Helsingør to Helsingborg, approximately 20 min travel - Oresundlinjen
It is recommended to make a reservation for your car on all ferry lines.
If you are a citizen of a country outside the EU, you may need a visa. You can find everything about a visa for Sweden on the homepage of Migrationsverket.
The application form for a Schengen visa can be found here.