Wohnmobilhafen Hamburg

CP in a large parking lot, lots of campers, cabin with several showers and toilets, reasonably clean (please leave it clean yourself too!) Expensive though, 35 euros Good location for exploring the city by bike Lots of train and traffic noise

At night, the train runs directly overhead, so it's a bit noisy, but it didn't bother me. Quick access to the city center, well located. Accessible 24/7. Shower/toilet access is available via a code, which you'll receive if you stay overnight. Reception is open from 8:00 a.m. to 12:00 p.m. and 12:30 p.m. to 4:30 p.m.

Not quiet, not nice, and quite expensive. The restrooms are just about acceptable. But in the middle of a big city, you're lucky to have a spot. There are spots available during the week, even in July.