Hi guys. Good thread. I'm planning on a trip to a'dam at some point in the near future and was wondering the same thing.
I haven't been to nl for quite a few years, since I lived there for a short while. I used to go to a coffeeshop close to my apartment called "katsu", wich sold very good hash. Also smoked some blueberry that was probably the best tasting weed I have ever smoked.
Dampkring was another shop I sometimes went to when in the city centre but like I said, that was a few years ago so don't know what these places are like nowadays.
I always wonder if any coffeeshop's (a'dam or elsewhere) sell any sanniesshop strains..? Probably not, as his strains are not as 'commercial' as some of your more well known strains.. If there was I would definitely like to check them out.
Anyway good luck with your search for a trippy sativa mate and have a great time!