Møn is linked to Zealand by a fixed bridge — no ferry — and is straightforward to reach. By car from Copenhagen it is around an hour and forty-five minutes via the E47/E55 motorway south to Vordingborg, then route 59 across to the island. Driving is the easiest way to get around once you are here.
By public transport, take a regional train from Copenhagen to Vordingborg (about 75 minutes), then bus 660R to Stege (a further 35 minutes). From Stege, local bus 678 runs east toward Møns Klint a few times a day in summer, less often in winter. Cyclists can put bikes on the train and ride from Vordingborg; the route across the island is flat and pleasant.
The nearest airport is Copenhagen (CPH), with frequent train connections to Vordingborg.