I’m clearly not an expert in this matter as i am not too fond of beaches in general. In Costa Rica they are too hot for me so never took the time to get to like them truly. I’m also not sure of how to clasify them but here we go.
Said this, Germany has more beaches than i originally thought. We all know Germany has borders with basically half of Europe (ok i’m exaggerating, but it’s a lot of countries), but it also have the North Sea and the Baltic Sea around in the north. This might not be enough for germans tho, as you can find a lot of “beaches” also around lakes and rivers (like the Rhin in Düsseldorf or the Elbe and Alster in Hamburg)
I remember the first time i took Micha to a Costa Rican beach, he asked me “Is this a natural white-sand beach or is it man made?. I was confused. Man made? Who would make a whole beach?. Well… Germans do.
So this beaches around rivers and lakes are mostly man made. Someone at some point decided to have a beach there and put a lot of sand. It works!.
So far we have visited the Elbstrand Oevelgönne in Hamburg and the Baltic Sea in Mecklenburg-Vornpommern
You have to be careful when a big ship is passing close.
The best for me is Elbstrand Oevelgönne, cause it’s close to the city so you can run away from the heat anytime and go back to a normal environment. It is literally in the Elbe so probably not a good one to get into the water, but the rest is really pretty and you can just throw your blanket and chill while you see all the ships passing by in the Elbe.
The Baltic Sea is also really pretty and the water is (i think) cleaner than the Elbe so is “safe”to go in. I say “safe” cause i saw several germans inside, but i also saw a lot of jellyfish so i’m not sure. Apparently this jellyfishes are non-poisonous but i don’t know them so i didn’t risk it. This one is also way more relax than the beaches in Hamburg, as there is normal to see people drinkking or listening to music, but in the Baltic Sea is more about getting in the water and making LOTS of sand castles.