Discover Japan's hidden fortress island where history, nature, and ocean scenery meet.
Just a short journey from Yokohama, Sarushima offers a rare combination of history, nature, and coastal scenery that feels worlds away from the busy city. Once used as an important defensive site during Japan's modernization, this small island preserves historic brick tunnels, former military facilities, and coastal fortifications surrounded by beautiful ocean views. On this private guided tour, you'll travel by car and ferry to explore Sarushima while learning about Japan's changing defense systems, naval history, and the role this island played in protecting the entrance to Tokyo Bay. Beyond its history, the island also offers peaceful walking paths, unique natural landscapes, and a relaxing escape from the city. Perfect for travelers interested in history, photography, nature, or discovering places beyond the typical tourist routes, Sarushima provides a completely different side of Japan that many visitors never experience.
Escape the city and discover a unique island destination rarely visited by international travelers.
Explore former defense facilities, brick tunnels, and coastal fortifications while learning their historical importance.
Enjoy scenic coastal landscapes, peaceful walking paths, and beautiful views surrounding the island.
From cultural experiences to food tours, we have the perfect journey waiting for you
Begin with pickup from your accommodation and travel comfortably by private vehicle to the ferry terminal. After crossing the water to Sarushima, explore the island with your guide and discover its historic ruins, natural scenery, and fascinating stories before returning to the mainland.
Begin with pickup from your accommodation and travel comfortably by private vehicle to the ferry terminal. After crossing the water to Sarushima, explore the island with your guide and discover its historic ruins, natural scenery, and fascinating stories before returning to the mainland.
Meet your guide at your accommodation and enjoy a comfortable drive toward Yokosuka while learning about the area's history and importance.
Explore the island's historic pathways, brick tunnels, former military facilities, and coastal viewpoints while discovering how Sarushima contributed to Japan's defense system.
After returning from the island, enjoy the option to explore nearby areas before your guide returns you to your selected drop-off location.
At your hotel
English,
Free cancellation up to 72 hours before the tour
Deen was SO knowledgeable and so wonderful to chat with! Who knew my husband would find his twin halfway across the world?! They had so much in common, from video games to food likes (and dislikes), that it felt like an old friend showing us around Kamakura. We wanted to focus on nature and culture, and Deen did not disappoint. Thank you for all of the amazing stories and history of the area -- we will recommend you to everyone we know!
Cari – United States
July 30, 2026
What makes Sarushima different from other Tokyo-area tours?
Sarushima is a unique destination combining military history, nature, and ocean views on Japan's only uninhabited natural island in Tokyo Bay.
Is the walking difficult?
The island walk is generally easy, but guests should expect uneven paths, stairs, and some historic terrain. Comfortable walking shoes are recommended.
Is the ferry included?
One adult round-trip ferry ticket is included. Additional participants require their own ferry tickets, which can be added during booking or paid on arrival.
