Classroom lesson ยท Million Dollar Point ยท ๐Ÿ‡ป๐Ÿ‡บ Vanuatu

Million Dollar Point

An underwater treasure pile of old vehicles and machinery

Photo ยท Wikimedia Commons

What is it?

Million Dollar Point is one of the most unusual diving spots in the world. Lying just beneath the surface of the sea, off the coast of Espiritu Santo, is a huge pile of old bulldozers, jeeps, forklifts and other heavy machines. Over the decades, coral has covered everything in a rainbow of colour, turning the rusty pile into a spectacular artificial reef.

Tell me more

How did all those machines end up underwater? After the Second World War, a large amount of equipment was left on Espiritu Santo because it was too expensive to ship home. Rather than leave it on land, it was driven off the beach and into the sea. Today it rests just a few metres below the surface โ€” shallow enough for snorkellers to peer down and see it clearly.

Nature has completely taken over. Coral polyps โ€” tiny animals smaller than a grain of rice โ€” slowly built their stony homes on every surface. Over decades, the bulldozers and jeeps became a thriving reef. Clownfish dart between sea anemones growing on old tyres. Lionfish hover near rusty engine blocks. The machines have become a habitat.

Divers from all over the world visit specifically to see this reef. It is a good reminder of how quickly nature can reclaim something humans have left behind. In the right conditions, bare metal becomes a coral reef in just a few decades โ€” a surprisingly short time on an ocean timescale.

The site is so rich with sea life that marine scientists use it as a study area. They track how quickly different coral species spread, and which fish prefer which types of structure. The old jeeps and cranes have become as scientifically interesting as any natural reef.

In the classroom

Walk your class through this in 15 minutes.

Talk together

Discussion prompts

  1. 01How do you think the ocean changes something over many decades? What does coral need to start growing on a surface?
  2. 02If you were designing an artificial reef on purpose, what shape or material might work best โ€” and why?
  3. 03Million Dollar Point shows nature taking back something left behind. Can you think of other examples where nature has reclaimed a human-made space?
Try this

Classroom activity

Draw a 'before and after' pair of pictures: the first showing a bulldozer sitting on the sea floor just after it went in, the second showing it 70 years later covered in coral, fish and sea anemones. Label at least five different sea creatures and where they are living on the machine.