Vacationers (and locals) cannot purchase Cannabis products and solutions that contains THC in Germany, and this won't improve. You can't lawfully accept weed from a German nearby who has been developing it for their personal use at home. This might criminalize you and him. I.e., your Airbnb host is https://buyweedindubai49136.blazingblog.com/36421308/getting-my-buy-cannabis-in-germany-to-work