Located just an hour south of Tôkyô in Kanagawa Prefecture, Enoshima Island is the perfect destination for escaping the hustle and bustle of Japan’s capital.
This charming island is renowned for its stunning landscapes, historic temples, and scenic coastal walks. Among its many attractions are the mysterious Iwaya Caves, a must-visit for history buffs and fans of Japanese legends.
These natural caves, accessible via a paved path, invite visitors to channel their inner adventurer in a truly unique setting. However, with some narrow passageways, the experience might be a bit daunting for those prone to claustrophobia.
The History Behind the Iwaya Caves
The Iwaya Caves were first mentioned in historical records in 552, when a Buddhist temple was built within one of them. At the time, the entire island of Enoshima was regarded as a major religious sanctuary dedicated to Benzaiten, the goddess of art, beauty, and wisdom.
After the Meiji Restoration, the island transitioned into a popular tourist spot. While the caves lost their central religious significance, they remain a fascinating site where ancient myths and stories endure.
- The Creation of Enoshima by Benzaiten
According to legend, Enoshima Island was formed by Benzaiten herself to drive away an evil dragon that plagued the area. Captivated by her beauty, the dragon fell in love and vowed to stop his wicked deeds if she agreed to marry him. She consented, and peace returned to the region. - The Dragon’s Scales and the Hôjô Clan
Another tale recounts how a dragon appeared to samurai Tokimasa Hôjô (1138–1215) during his prayers in the caves. The dragon gifted him three scales, which became the emblem of the Hôjô clan. Today, this symbol of three triangles is famously recognized as the Triforce in The Legend of Zelda video game series.
Some visitors note that the longest cave’s shape resembles a woman’s vagina—an interpretation that sparks curiosity and leaves much to the imagination.
What Awaits Inside the Iwaya Caves?
Your adventure begins at the entrance, where you’ll receive a candle to light your way. This simple tradition adds a sense of exploration to the visit. On busier days, flashlights may be distributed instead.
The caves are divided into two main sections:
- The First Cave (152 meters)
A winding corridor through the rock features displays and panels that narrate local folklore. At the end, you’ll face two intriguing paths:
- Left: A passage known as the "Hell Hole," said to be connected to the mysterious Narusawa Ice Cave near Mount Fuji.
- Right: A walkway leading to the second cave - The Second Cave (56 meters)
Though smaller, this cave is equally captivating. It houses a large statue of a dragon honoring the legendary dragon of Enoshima. Special lighting effects and soundscapes create a magical atmosphere.
How to Visit the Iwaya Caves?
- Getting to Enoshima Island
From Tôkyô, take the Odakyû Line from Shinjuku Station to Enoshima Station, a journey of about an hour. - Exploring the Island
Once you arrive, you’ll need to walk to the island’s far end to reach the caves. Along the way, enjoy other attractions such as the Enoshima-jinja Shrine and the picturesque Samuel Cocking Garden.
A popular day trip itinerary includes visiting the Great Buddha of Kamakura in the morning and spending the afternoon on Enoshima Island. For budget-conscious travelers, the Kamakura-Enoshima Freepass is a great option to save some yen while exploring the area.
