The nearest airport is Copenhagen, and there is highway all the way from the capital route 21
Holbæk is a major stop on the Copenhagen-Kalundborg railway line (http://www.dsb.dk) running nearly in a straight line west over Zealand with departures once or twice per hour during most of the day. It takes around 50 minutes from Copenhagen and Kalundborg, and around 30 minutes from Roskilde. Holbæk station is the interchange to the private Regionstog's (http://www.regionstog.dk) line to Nykøbing Sjælland, which covers nearly all of the Odsherred Peninsular.
If you are comming from West Denmark change to bus 13 in Slagelse Intercity trains, it takes around an hour, the bus continues to Nykøbing Sjælland and gets there a bit faster than the train. Another option is catching the ferry (http://www.molslinien.dk) to Kalundborg from Aarhus and catch a train from there. Most of the Abildskou (http://abildskou.dk) intercity buses between Copenhagen and Jutland stops at the Q8 gas station in Tuse Kalundborgvej 220.
