As someone who loves both postcards and the underwater world, you guys can imagine Iām thrilled to announce thatā¦ Germany finally has its own underwater mailbox!
Itās 19 metres deep inside Kreidesee Hemmoor, a lake north of Hamburg, and a genuine Diversā Disneyland 
The water is very clear (for a lake 
), the lake is ~60m deep, full of things to explore underwater, and itās only open for divers - no regular swimming allowed! 19 metres deep makes the mailbox significantly deeper than this wonderful place I canāt wait to visit too:
Now, Postcrossing wouldnāt be Postcrossing if some of the very first postcards sent from this unique mailbox didnāt have a mysterious DE-ā¦ code on it 
Let me tell you how it happened:
A little over a week ago, a freediving festival took place at the lake, and this is why I was there too. Not knowing anything about the new mailbox I was busy from mornings to evenings doing workshops, making new friendsā¦ Doing regular things like repairing carsā¦
ā¦ when a diving friend from Berlin texted me that the lakeās Facebook account had just posted the glorious news! I donāt remember ever letting him know about my postcard shenanigans, so I guess I must have given him a drunk post-dive speech about postcards and stamps (I guess you all know what itās like ). Well, good thing I did! I started my little side quest to find the mailbox, and tadaaah:
It even states the collection time (āweeklyā), tells us that waterproof postcards can be bought at the reception, and that itās Germanyās deepest mailbox:
The next side quest began because my tight festival schedule hardly allowed me to visit the reception with its constant queue of arriving scuba divers (but of course I made it happen ), and because said reception had screwed up buying waterproof pens for their waterproof postcards! I tested the one they sold me in the sink: came off straight away 
They did have a thick green one I could borrow - good enough, but I was so relieved the addresses I drew didnāt have a delicate script like Chinese 
By the time I mailed the cards on the last festival day my legs felt completely useless and I was frozen - it was those cold days in the midst of the heat wave, with only 22Ā°C air temperature and only 12Ā°C in the 20m depth region 
Mailing those cards was the very last thing I did before literally breaking down
The card itself is posted without the stamp, so the diving mail carriers (?) attach it themselves. Of course I reminded the receptionist that international mail requires more postage than national haha, postcrossersā paranoiaā¦ Would have loved to see their faces when they saw one of their first postcards is going all the way to Vietnam
Now, this is the card:
And this is it, Postcrossing reaching new depths :
And thereās a happy ending too: the first card arrived 
I canāt wait to go back and mail some more, and I hope I get to spot some more underwater mail on peopleās walls!
Thank you so much for sharing!
