Sønderborg is a town in Denmark near the Danish-German border. The population is 30.000. The towns in the region of Sønderborg is Nordborg, Augustenborg, Gråsten, Broager, og Guderup. The population of the region is 77,000.
There are daily flights to and from Copenhagen. Flying with Cimber Air, the ticket price ranges from 295DKK to over 1000DKK.
Train connections to and from most danish cities are available. DSB
If driving north on the E45 highway coming from Germany, route 8 is the fastest way to get to Sønderborg. If driving south on E45, route 41 is the fastest.
Sønderborg is located not very far from the Danish-German border. Just south of the border is the German town of Flensburg, which is popular amongst Danes going to Germany on a one-day trip, often to shop and to buy alcohol and chocolate, which is cheaper in Germany than in Denmark.
From the central bus station (rutebilstation) there are buses run to Dybbøl, Kær, Stenbjergparken, Kløvermarken, Skovparken, Sønderborg Sygehus (Hospital) twice at every hour. One way ticket is 17 DKK and payable onbard, only cash. There is also 10 clip card for 120 DKK, if you plan to travel more frequent. One other thing to note is it that, since it is a small town, buses take off twice an hour (mostly).
Sønderborg is a very bike friendly city. Almost all roads have separated bike lanes. Hop up on your bike or buy a second hand one and do not suffer in the buses.
Go to Nordborg and visit the famous Danfoss Universe.It is worth a visit especially if you have kids.You can hop on a Segway or see the amazing nature in the ICECUBE or visit the fun crazy science labs.There is also a 5d show.