You've got it right. Everyone can travel to Sweden from an EEA country or Switzerland, but from outside the Nordics you need the EU Covid certificate (or other approved certificates).
The ban for travel from third countries is based on recommendations from the European council. There is also a desire to keep travel within EU possible.
The European council ...
If you live in Netherlands, that is an orange country (yes I know, but now also according to the Danish classification) you need:
Test before arriving in Denmark
Test after arrival
Isolation after arrival
The tests could be PCR or quick antigen tests.
Can we travel to Denmark as a tourist ?
Unknown. This would be a difficult trip to do and will require a few hours of research just to find out the details for your specific situation.
Here are a few points that I have found but since rules are hard to interpret and changing very quickly these may not be up to date or accurately represented
Denmark only ...
As a Dane (actually living in Odense), I would use Google (including Google Maps) or ask a local of the city I was in. I would search using Danish terms such as "brugte cykler odense" in Google.
For bicycles, I don't know of any dedicated used bike stores in the city, but from my research, it does seem that a lot of the "normal bike shops"...
Note: all quotations taken from the CDC FAQ. Also, it matters when the test was taken, not when the result was delivered.
The test has to be no more than 1 day old, not 24 hours:
The 1-day period is 1 day before the flight’s departure. The Order uses a 1-day time frame instead of 24 hours to provide more flexibility to the air passenger and ...
Got to this roundabout because stackexchange celebrates its oldest sites. We took the Norroena to and from the Faroer for the 2015 total solar eclipse. The captain didn't want to take it out of the harbor for cloud dodging so we ended up clouded out while clear views were close by. But the ship is great and quite stable and the food was excellent and ...
The UK Government has an online tool that allows you to check if you need a transit visa based on your travel information and your country of origin.
All you have to do is click "Start now" and answer the questions on your screen.
Here's a link to it: https://www.gov.uk/check-uk-visa
Here is information on the 1-day requirement from the CDC.
The 1-day period is 1 day before the flight’s departure. The Order
uses a 1-day time frame instead of 24 hours to provide more
flexibility to the air passenger and aircraft operator. By using a
1-day window, test acceptability does not depend on the time of the
flight or the time of day that the ...
It is possible to get tested at Copenhagen airport directly before your flight see Copenhagen Airport testing
PCR tests take 4-6 hours to get results normally, and this is even more complicated over the Christmas period (see the link). However Rapid Antigen tests are reported in 15-30 minutes, will be acceptable to US as they take place under the auspices ...
Is there any place at all where we can travel from Germany easily during these times?
You can „travel“ to:
TV travel documentaries
Travel guidebooks / Wikivoyage
Other online options