The ways here are not joined in OSM data.

Needs joining.

via StreetComplete_ee 58.2

This whole mud bath "spa" is closed down.

Map paths leading to this beach

Here are steps mapped which do not connect to any way. Please resurvey and fix.

The ferry line of the "Siremar" ferry which carries cars and trucks should be connected to the drivevay at the end of the pier.

Unable to answer "Is the water potable here?" for node/7699042761 via StreetComplete 45.0:

Water well is closed off. Not usable.

Unable to answer "Does this bench have a backrest?" – Bench – node/11711641018 via StreetComplete_ee 56.1:

Two of the three benches here do not have a rest, one has. I do not remember which, so I cannot tag thus correctly.

Here is a building (Kleingarten-Bungalow).

via StreetComplete 54.0

This buildiungs are mapped in OSM to have more distance from the street than the other buildings. Also the outline angles are not rectangular.

Both needs to be corrected.

Here is a mountain.