Discover the enchanting world of bioluminescence on this guided night tour, where the ocean comes alive after dark in a phenomenon found in only a handful of places worldwide. Interact directly with glowing sea fireflies, safely attracting and observing their light up close for a rare, hands-on encounter with nature.

Watch as every movement in the water creates flashes of blue light—a natural phenomenon rarely seen with the naked eye—caused by bioluminescent plankton. Led by an experienced guide, you’ll also learn the science behind these organisms and the unique conditions that make this display possible.

Set in a quiet coastal environment away from city lights, this once-in-a-lifetime experience is perfect for travelers seeking something unforgettable—an opportunity not to be missed.

【Meet Your Guide】

Trevor Williams has lived in Japan for over 25 years and has worked as a professional photographer for more than 16 years.

Passionate about the Setouchi region, he specializes in creating immersive experiences that connect visitors with local culture, nature, and hidden stories rarely found in guidebooks.

【Frequently Asked Questions】

Will we definitely see bioluminescence?

Bioluminescence is a natural phenomenon and visibility varies depending on environmental conditions. However, sea fireflies can usually be observed throughout the season.

Is this suitable for children?

Yes. Families with children are welcome.

Can I take photos?

Yes. Photography is encouraged.

What should I bring?

Comfortable shoes, drinking water, and weather-appropriate clothing.