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# Coordinate Treasure Island - maths puzzle
- URL: https://www.esheets.io/coordinate-treasure-island/
- Published: 2026-05-09T15:03:35.000Z
- Updated: 2026-07-19T15:32:44.000Z
- Author: Richard Linnington 2
- Tags: Maths, Puzzles

Can you follow the clues and find Captain Gridbeard’s hidden treasure? In this puzzle, you’ll explore a mysterious island by clicking points on a coordinate grid. Each clue sends you to a new location, but you’ll need to think carefully about coordinates, translation vectors, midpoints, gradients, lines and distances.

Your aim is simple: find the treasure in as few attempts as possible. You can use the hints if you get stuck, but every checked location counts as an attempt — so choose your coordinates carefully before you press Check Location.

Start with Explorer Mode for the safer route, or try Navigator Mode if you’re ready for sneakier clues. Good luck — the treasure will not dig itself up.

**Note for teachers / tutors:** You might want to print some [cartesian grids](https://suncatcherstudio.com/printables/grid-paper/?ref=esheets.io) from -10 to 10 (for workings)

# Coordinate Treasure Island

Welcome to the island! Solve the clues to find the hidden treasure.  
Your challenge: complete the route with the fewest possible attempts.

Sound: On 

### Explorer Mode

Start with the safer route across the island. The clues are still tricky, but the path is a little more forgiving.

Start Explorer Mode 

### Navigator Mode

Take the harder route through the island. Expect sneakier clues and a few extra twists.

Start Navigator Mode 

Selected coordinate: None

Clue 1 of 16

Show Hint Check Location Next Clue 

#### Route Log

## 💰 Treasure Found! 🎉

Play Again / Menu