In Denmark, you're essentially going to be living on like weird European islands. The best advice that I have for PDAs is to just explore, because no matter where you go you're going to find like the beach or some cool monument. One time we were out just going around and we found some Viking tombs and you just never know what you're going to run into. So if you're outdoors and actively seeking something cool to do, you're generally going to find it.
In Denmark, we went to Copenhagen, and one thing we went and did was saw the Royal Jewels that they have there. And that was really cool. The whole experience was really awesome. And to see all of the stuff that they have and to learn through the history of it was a really cool experience. I would 100% recommend it to everyone.
So you can actually take a canal tour when you're in Denmark and they will show you like the main city from the water which is super pretty and you just get to sit in a like a little canal boat and relax and then you get some really pretty views of like the beautiful colored houses from the water so definitely would recommend a canal tour.
Find a beach, find an island, a forest. You can go find like old viking ruins, even just like a really old city and just walk around.