You think you know a lot about natural pools? As you will see there are going to be some surprising answers. Try to figure them out and win.
Eight questions and eight answers. There is only one correct answer. Here’s a little hint to solve this tricky test: Each possibility stands for a letter that is part of the solution. The word you are looking for is what you have once the natural pool is built.
Each correct entry is awarded a “Biotop Natural Pool Cool Bag”.