Blue Grotto

Sunlight reflects through a natural sea cave to create an ethereal azure hue across the waters.
Kosa Monteith
Published on June 21, 2023

Overview

The first time you see the Blue Grotto, you won't believe it's real. In a little wooden boat, you're rowed through a small rocky entrance into a low cave. The stone above is dark while the water beneath is glowing a bright, iridescent and almost magical azure blue. This effect of ultra-bright blue water in the 60-metre-long cave is caused by the reflection of light from the world outside. The walls of the cave also bounce sound back and forth with pleasing, ethereal acoustics — you might want to give singing a try, or your skipper may oblige as a demonstration.

You can book a tour from Marina Grande. Aim for the sweet spot between 12–2pm, when the reflections are at their most captivating.

Images: Getty Images via Canva.

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