I probably won't bother doing a proper trip report (although don't hold me to that), but I'll give my feedback on the Coronavirus measures at the parks I've experienced in Germany this last week.
Tripsdrill
Mask policy - In queues, indoors and on rides (not required for children, but not exactly sure how that is defined). Staff patrolling queues and ride-ops enforcing proper mask usage (must cover nose and mouth).
Social distancing - Reasonable enough effort in queues, shops, restaurants and general areas of the park. No vacant rows on any rides. Park did not feel particularly busy, but wasn't the best day for weather, so not sure if this was a capacity limit or lack of interest.
Sanitiser - Plenty of hand sanitiser stations throughout the park. Trains not 'evidently' being wiped down, but can't guarantee we just didn't see it happening.
Overall - Frankly, as good as it'll get I think. Generally guests were adhering to the policies and appeared to be thoughtful towards others.
Europa Park
Mask policy - In queues, indoors and on rides (not required for children, but not exactly sure how that is defined). Staff patrolling queues and ride-ops enforcing proper mask usage (must cover nose and mouth).
Social distancing - Reasonable enough effort in queues, shops, restaurants and general areas of the park. No vacant rows on any rides, and some ride-ops even filling empty seats with odd-numbered groups. Park was busy, meaning lots of crowded pathways (where masks are optional - we began wearing them everywhere it was even remotely crowded, but at our own choice). Honestly, felt just as busy as it did when we visited three years ago, I can't believe they were limiting numbers in the park.
Sanitiser - Plenty of hand sanitiser stations throughout the park. Trains were being stopped every 15mins or so for a full wipe down.
Overall - Mixed feelings here. Mask policy and sanitisation was good, but the park was busy and lots of people not adhering to the rules until told to by staff (and even then sometimes only temporarily).
Rulantica
Mask policy - Masks must be worn right up to the changing rooms for the waterpark, after that not required.
Social distancing - I mean, sure? It was busy and people sort-of tried their best, but wasn't great.
Sanitiser - Plenty of hand sanitiser stations throughout the waterpark. Rafts/inflatables rinsed between users.
Overall - My summary of this day was "
Corona-what?". This truly felt like 'the good old days', and I don't think that's necessarily a positive thing.
Schwaben Park
Mask policy - In queues, indoors and on rides (not required for children, but not exactly sure how that is defined).
Social distancing - Reasonable enough effort in queues, shops, restaurants and general areas of the park. Vacant rows on coaster trains. Park was Dead (with a capital-D) though, so not really sure how it'd hold up on a busier day.
Sanitiser - Only a few of these around the park, but then park is small and they were in the common areas in between rides.
Overall - Given this is a tiny park in the arse-end-of-nowhere with only about two dozen people in the park on the day we were there - this was fine.
EDIT: Will also add the irony (for lack of a better word) of a park like Europa being so close to the French border (you can see it from the creds). I would imagine something like 1/3rd of the guests in the park being French. Funny to me that set foot over that line and you have to quarantine, but mix with loads of people in another country? No problem.
Mercifully the regions around Europa (both German and French) are doing okay at the moment, but it's a curious thought. Makes me think the 'region' concept it probably a bit more useful than the arbitrary countries idea we use now.