I guess you are in Copenhagen then. If one of your study tours takes you to Aarhus let me know. We have a pretty decent Aikikai dojo, and I'm sure you will be welcome to drop by.
What 'style' do you usually do ? There should be a pretty good chance of finding something close to your preferences in Denmark since we have both Ki-aikido, Iwama-ryu and aikikai (Nishio-influenced) - most of them represented in the larger cities.
If you want to do aikikai-aikido you should take a look at www.aikikai.dk
- there is a poster regarding a large easter-camp with 7. dan Takao Arisoue. People from all of europe plus some from the US usually join us for a week of practice.