Chart the World's Seas

World Seas Navigator

Test your knowledge of the world's seas by locating major seas, gulfs, bays, straits, and surrounding water bodies on the map, from the Mediterranean Sea and Caribbean Sea to the South China Sea, Arabian Sea, and more.

Your Mission

Pin each sea where it actually lies.

10 targetsShuffled each run

Private ChallengeScores stay hidden

Share & CompareChallenge your friends

Start Challenge

Get your unique challenge link to begin.

How it Works

1

Drop a Pin

Tap where you think it lies — drag the pin to fine-tune, drag elsewhere to pan

2

Lock It In

Watch the map fly to the real sea, its extent outlined in flowing water

3

Compare Results

Share and see who read it closer

Incoming Challenge

You've Been Challenged

A friend already pinned all the seas and dared you to beat them. Same targets, same order — their score stays hidden until you finish your own run.

From A navigator

Locked in a score across all targets

Accept to take the exact same course and find out who reads world seas closer, sea by sea.

How it Works

Same map, same order, head-to-head

Drop your pin as close to each real sea as you can — closer placements score higher. At the end you'll get a full head-to-head breakdown.

Mission Complete

0%

Average Placement Accuracy

Rival

0%

VS

You

0%

Leave this run?

World Seas Navigator

Your Mission

Start Challenge

You've Been Challenged

From A navigator

How it Works