For a taste of what the locals traditionally do for fun, buy a foot passenger ferry ticket to Helsingør. Scandlines’ ferries run every 20min (64kr return; w scandlines.se) and hop on the boat to Denmark. Tickets are available on the first floor in the Knutpunkten terminal. Try to go on the Aurora or Hamlet, which have better restaurants and bars than the Tycho Brahe; you can see in the timetable which ship operates which departure. The idea is to “tura” as it’s called in Swedish, that is to go back and forth as many times as you like on the same ticket. Good-value lunches and dinners are also served on the boats and you can also buy duty-free.