Description
This book offers a deep-sea interactive journey. Children see the mysterious underwater world with their own eyes, observe animals living at a depth of 300, 500, and even 10,000 metres (984, 1,640, or 32,808 ft), walk through the remains of a sunken ship, and feel like treasure hunters — without getting caught by huge predators.
It isn’t magic — it’s augmented reality. Download the free DEVAR app on a smartphone or tablet, activate the book, and become the hero of an exciting adventure. The story begins on the page.
Note: The free DEVAR app is geographically restricted and can be used only in Sri Lanka.




![Info - Travel Polonnaruwa [English]](https://neptunepublications.com/wp-content/uploads/2026/01/01-410x410.jpg)
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