WARNING: This project has been known to crash some web browsers. The project has large graphics sized enormously large. In the 15th century, there was no map of the world! Use the arrow keys to move your ship and explore. Like the original explorers, you could draw your own map as you go. You could try to go around the world and return home. You could find the quickest route around the world (which may include a bit of slow land travel). Supplies are used up while at sea, but they are replenished when you touch land.
Your ship may take 10 or 20 seconds to start moving. The world is a vector graphic from the internet, sized at 2000% using the mega-zoom trick: https://scratch.mit.edu/projects/12623360/ You can't sail across the North and South Poles.