Download and verify your phone number on a few key apps if you won’t have access to your phone number (i.e., a data-only eSIM)
Rejsekort: Transit app for easy city travel
Rejsebillet: Transit app for regional trips (this can also do what the Rejsekort app does, it’s just more annoying)
Donkey Republic: Bike sharing rental, much like Lime or Lyft bikes in the US
Bring a swimsuit, if you’d like to swim in the harbor. We have extra towels so no need to bring that. Regardless of time of year, you can swim and sauna.
Bring an eye mask, if you’re sensitive to light when sleeping. This mostly applies from March to October. In contrast, in the winter it can be only 7 hours of sunlight (8:30 to 15:30).
Bring a rain jacket or umbrella. The weather is unpredictable, and we are very prone to rain. It may also be chillier than you might think.
In Denmark, the currency is the Danish krone (DKK). You most likely do not need cash, but if you did, you should use your preferred international debit card at a local ATM in Copenhagen. Most places aside from a few restaurants do not take American Express, so just use your normal preferred credit card for international travel.