Kameiwa Cave in Kimitsu, Chiba, is famous for its magical heart-shaped light reflection. This hidden gem, located next to the serene Nomizo Waterfall , is perfect for day-trippers seeking natural beauty close to Tokyo.
This guide explains how to get there, what to see, local food, and where to stay.
Contents
How to Get to Kameiwa Cave
By Train
Take the JR Uchibo Line to Kimitsu Station
From the station, ride a bus to Shimizu Keiryu Hiroba
Walk 10 minutes from the bus stop to the cave
By Bus
Buses run from Kimitsu Station to Shimizu Keiryu Hiroba
Service is limited; check schedules in advance
By Car
From Kimitsu IC on the Tateyama Expressway, drive about 30 minutes
Free parking is available, but it fills up quickly on weekends
Check the latest weather forecast before your visit: [weathernews ]
Recommended Itineraries
Half-Day Plan
8:00
Arrive at Kameiwa Cave
Capture the heart-shaped light reflection in the morning sun
9:00
Explore Nomizo Waterfall
Enjoy the calm atmosphere and nearby walking trails
10:30
Visit Michi-no-Eki Kisarazu
Browse local foods and crafts at the roadside station
Full-Day Plan
Follow the half-day plan, then continue exploring nearby attractions:
12:30
Hike in Yoro Keikoku
Discover scenic trails and riverside views
15:00
Relax at Kururi Onsen
Unwind in a natural hot spring near the cave area
17:00
Dinner in central Kimitsu
Enjoy local seafood or ramen before heading back
Must-See Spots and Experiences
Kameiwa Cave
A natural rock tunnel known for its heart-shaped sunlight reflection. Best viewed in early morning between March and September.
Nomizo Waterfall
A peaceful waterfall beside the cave. Part of the same nature park and easy to reach.
Best Local Foods to Try
Local cuisine highlights fresh seafood and tea-based desserts.
Grilled Hamayaki Seafood – Fresh shellfish grilled roadside along the Boso coastHojicha Soft Cream – Rich roasted green tea ice cream, sold at local standsKimitsu Ramen – Soy-based broth with thick noodles and regional toppingsMountain Vegetable Soba – Handmade soba served with seasonal wild vegetables
Where to Stay
Accommodation is limited near the cave, so book early for convenience. Options range from hot spring inns to affordable lodges in Kimitsu or Kisarazu.
Luxury
Ryugujo Spa Hotel Mikazuki – Large resort with ocean views and onsenOkura Akademia Park Hotel – Refined stay near nature and shopping
Mid-Range
Kimitsu City Hotel – Comfortable stay with easy access to transportHotel Route-Inn Kisarazu – Great value and breakfast included
Budget
Guesthouse Kisarazu – Friendly staff and basic amenitiesKururi-no-Yado – Small ryokan close to nature trails
FAQ
Can I see the heart-shaped light all year round?
The clearest heart shape is typically visible around March 20 and September 23, within two days before and after each date.
What are the ideal conditions for seeing the heart shape?
Clear skies in the early morning are best. Windy or dry days may prevent the reflection from forming.
Is the site suitable for families or elderly visitors?
Some paths are unpaved and uneven. Comfortable walking shoes are strongly recommended.
Can I enter the cave itself?
No, entry into the cave is not allowed. A telephoto lens is recommended for capturing the heart-shaped light from a distance.
Is camping or picnicking allowed near the cave?
Camping is prohibited, but picnicking is permitted in designated areas only.
Conclusion
Kameiwa Cave is one of Chiba’s most photogenic hidden spots. Its unique light reflection and peaceful setting beside Nomizo Waterfall make it well worth the trip.
Start planning your adventure and uncover the magic of Kameiwa Cave today!
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