If I would like to travel from Gdańsk to Denmark, what would be my possible means of transportation? Please add some additional information that would allow me to choose right one for casual trip.
There are several possible means of transportation you could use to travel from Gdańsk to Denmark, depending on your preferences and budget. Here are some options:

    By plane: The fastest way to get to Denmark from Gdańsk is by taking a flight from Gdańsk Lech Wałęsa Airport to Copenhagen or Billund. The flight duration is around 1-2 hours. You can check for flights and prices on websites such as Skyscanner or Expedia.

    By train: You can take a train from Gdańsk to Copenhagen via Germany. You would need to take a train to Berlin and then transfer to another train to Copenhagen. The journey takes around 10-12 hours, and you can check for train schedules and prices on websites such as Deutsche Bahn or Omio.

    By bus: You can take a bus from Gdańsk to Copenhagen or other Danish cities such as Aarhus or Odense. The journey takes around 12-14 hours, and you can check for bus schedules and prices on websites such as Flixbus or Eurolines.

    By ferry: You can take a ferry from Gdańsk to either Copenhagen or Frederikshavn. The journey takes around 18-20 hours, and you can check for ferry schedules and prices on websites such as Polferries or DFDS.

When choosing the right means of transportation for your casual trip, consider factors such as travel time, cost, comfort, and convenience. If you value speed and comfort, flying may be the best option for you. However, if you prefer a more affordable and scenic journey, taking the train or bus may be a good choice. If you have plenty of time and want to enjoy the sea views, taking a ferry can be a fun and unique experience.
Thank you! What would be the most eco-friendly means of transportation for this trip?
There are a few eco-friendly options to consider for traveling from Gdańsk to Denmark:

Train: Taking a train is generally considered to be one of the most eco-friendly ways to travel. There are several train companies that operate between Gdańsk and Denmark, such as DSB and Deutsche Bahn. Depending on the specific route and train you take, the journey could take anywhere from 5 to 10 hours, with a change of trains in either Hamburg or Copenhagen.

Ferry: If you're looking for a more scenic route, taking a ferry from Gdańsk to Denmark could be a good option. There are several ferry companies that operate between Poland and Denmark, such as Stena Line and Polferries. Ferries produce lower emissions per passenger than planes, and the journey can be a fun and relaxing way to see the coastline.

Bus: Taking a bus that uses alternative fuels, such as electric or hybrid buses, could also be an eco-friendly option. Companies like FlixBus and Eurolines operate bus routes between Gdańsk and Denmark, and they may offer eco-friendly options.

Overall, taking a train or a ferry would be the most eco-friendly options for traveling from Gdańsk to Denmark. However, it's worth checking with the individual companies to see if they offer any specific eco-friendly options, and to compare the emissions associated with each mode of transport to make an informed decision.