The Geography Detectives travel around the world and solve strange mysteries with the Portolan app!

Marina is traveling with her mom to the Netherlands to visit her sister who is studying in Amsterdam. She can't wait for the moment she will rent a bike and ride along the canals! As Marina explores the city with her new friend, Johan, at a peace protest, a protester offers her a paper tulip with three petals. On the petals is written the word "light" and below are three riddles that lead to three mysterious "h's" all over Amsterdam! Where do the transparent walls lead? Where is a girl hiding and why? Is there really an invaluable treasure? The children are ready to solve the riddles!

Become a Geography Detective too, explore Amsterdam and its anti-war monuments, and experience an exciting adventure!