Kaliningrad and in particular Zelenogradsk (Cranz) is about amber. A lot of amber is found near the beaches and sold in the many tourist shops.
On the beaches you always see people bent over searching for amber.
I tried to find some myself and it is not so easy as it looks! I found only small pieces, but the hunt is the fun of it. Sometimes not the destination is the nice part but the journey!
The bigger pieces are found by professional in the sea.
Amber is the result of dripping raison from the Pine trees. If a branch breaks off the wound drips/bleed’s drippy raison, a kind of sugar rich yellow glue-like stuff.
The raison falls to the sandy ground and will form a big drop of the stuff. Some hundred years later the amber is stonified and the pine needle trees area near the beach became beach without the trees.
So, you will only find amber near pine forests. Amber does not feel like a stone but more like plastic, I test it with biting on it and I immediately feel the difference is it is the real stuff.
Little pieces of amber you can use to make a picture frame look fantastic. Put glue on de picture frame and put the little pieces of amber on the glue and it will look great. You see the same stuff sold in the amber shops.
But what is nicer to find it yourself and put a wedding picture in such frame!