The best time to visit Denmark for warm weather is June to August, when temperatures are mildest and coastal towns are at their liveliest. May and September offer a quieter, cheaper alternative with similar mild conditions and fewer crowds. There are highlights year-round: Sankt Hans brings bonfires and gatherings on Midsummer's Eve in June, Roskilde Festival draws one of Europe's biggest music crowds every summer, and Tivoli Gardens' Christmas market lights up Copenhagen from mid-November.

The best things to do in Denmark include exploring Copenhagen, visiting the Viking Ship Museum in Roskilde, and relaxing in the medieval town of Odense.

• Exploring Copenhagen's galleries, breweries and canal-side neighbourhoods

• Visiting the Viking Ship Museum and cathedral in Roskilde, a UNESCO World Heritage Site

• Wandering the medieval streets and sandy beaches of Odense on the island of Funen

• Crossing the Øresund Bridge by train between Copenhagen and Malmö

• Exploring the historic port town of Aarhus and its open-air museum

• Walking the chalk cliffs of Møns Klint, rising over 100 metres above the Baltic Sea

• Birdwatching and hiking in the Wadden Sea National Park, a UNESCO World Heritage Site

Denmark is reachable by train via Hamburg and northern Germany, and connects onward to Sweden and Norway via the Øresund Bridge and ferry links. Within Denmark, an extensive rail network connects the country's islands, including direct lines to Odense, Aarhus and Roskilde.