A visit to the Natural History Museum in Burgas, Bulgaria. The children listened to a detailed talk about the nature of the Burgas region, with the focus being the Black Sea inhabitants. Then they had a practical activity consisting of two tasks – the first of them was to draw and color a different kind of dolphin. The second task was to send a message in a bottle. The children used a glass bottle, black Burgas sand, small sea shells and snails for decoration. Every child wrote on a piece of paper their message about the preservation of the Black Sea and its inhabitants, the importance of conserving our nature and waters clean and unpolluted.