Kalmar Airport is served by domestic flights to Stockholm, while the closest international airport is Kastrup in Copenhagen, Denmark. From Kastrup the Öresundståg train goes to Kalmar in 3,5 hours, costing 419 SEK (242 SEK for people below the age of 20). Tickets can be bought at the Kastrup and Kalmar stations or online in advance (Swedish only) 
For boat lovers Kalmar has a beautiful harbour with good facilities for the visitor. Occasionally cruise ships stop at Kalmar.
Since September 2014 there are direct flights to Kalmar from Berlin. 
You can walk to all interesting locations. The city centre is relatively small, with two main squares. On one you find the cathedral (Domkyrkan) and the other is called Larmtorget. From the second one, you can walk to the Baronen shopping centre. You can also rent canoes at the low cost hotel Svanen, and you can paddle your way around the centre, which is an island.
Kalmar is an interesting town in many ways. The town was established in 12th century and the old city wall is still well preserved. The Kalmar Castle dates back to the year 1160 A.D and the tower of the castle was continuously expanded in the 13th century. Beside the castle, there is a very peaceful city park.
This town is connected to the island of Öland by a bridge, which used to be Europe's longest (6 km). Kalmar is about 45 minutes away (by car) from the Glass Kingdom (Glasriket) where the famous works of Orrefors, Kosta Boda, Nybro, Pukeberg, Målerås are located. Kalmar has a football team, Kalmar FF,  that won the Swedish cup in 2007. They play in the highest division, the Allsvenskan. You can watch them play at Kalmar Arena. Newly constructed and opened in 2010.
Kalmar has a university, Linnéuniversitetet (Högskolan i Kalmar). It is known for its courses in seafaring, teaching and economics (Baltic School of Economics).
The past couple of years many shopping malls and establishments have opened in Kalmar. The main shopping areas are
In the museum Länsmuséet you can buy many Christmas articles, some made after designs by Jenny Nyström, a famous swedish artist born in Kalmar.
Kalmar suits very well as the starting point, if you want to experience the Swedish east cost. Swebusexpress runs between Kalmar and Karlskrona regularly and the cost of this bus trip is low. It is also possible to travel to another elegant and relaxing summer resort in the east cost, Västervik. The local bus goes to Borgholm in Öland island and it takes approximately one hour.