I watched this when i was a child, it was my first anime. This is coming from someone who's all time favorite movie was GOONIES. The animation is pretty good considering it was the early 1980's. It's about a boy called Esteban(child of the sun) who is taken from Spain and is boarded aboard a ship to help find the cities of gold. He and his friend's go on a puzzling adventure with some sci fi Mayan artifacts. If you like stuff about Mayan history and treasure hunting you should like this.