Dino Island was an Adventurers subtheme released in 2000 and was based on the story line where the explorers discover a new mysterious island and discover that there are dinosaurs living on the island. Characters/minifigures in the Dino Island theme include Johnny Thunder, Mr. Cunningham, Dr. Charles Lightning, Baron von Barron and many other Adventurers' characters in addition to dinosaurs.
The Adventurers theme is based on an early 20th century exploration where the characters explore new areas, and go on adventures. All of the Adventurers sets, except for the Dino Island subtheme, take place in real-world locations, such as Egypt, the Himalayas, India, the Amazon rainforest, and China.