THE ADVENTURE COLLECTIVE® · Independent discovery and booking for outdoor travel
A short ferry from Yokosuka drops you onto Sarushima, Tokyo Bay’s only natural island, where moss-covered brick forts and tunneled magazines recall Meiji-era coastal defenses. This guided tour blends compact hikes, hidden chambers, and sweeping sea views—perfect for a focused half-day excursion.
A short ferry from Yokosuka drops you onto Sarushima, Tokyo Bay’s only natural island, where moss-covered brick forts and tunneled magazines recall Meiji-era coastal defenses. This guided tour blends compact hikes, hidden chambers, and sweeping sea views—perfect for a focused half-day excursion.
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Operated by DeepExperience · Yokosuka, Kanagawa
The ferry slips away from Mikasa Pier and the city thins into a wide blue of Tokyo Bay. In ten brisk minutes Sarushima appears: a low green silhouette ringed by sea, its red-brick walls and broken stairways rising like memories out of the surf. The guide leads you off the dock and onto narrow forest paths where moss softens the steps and gulls wheel overhead.
easy.
1–2 hours.
Suitable for most fitness levels; able to walk on uneven ground, climb short stair sections, and navigate narrow tunnels.
The crossing from Mikasa Pier is about 8–12 minutes each way—short and scenic.
Guided access keeps you on the stable routes; many areas are intact but fragile—follow your guide and posted restrictions.
Yes—physical demands are low, but be prepared for steps, uneven ground, and narrow tunnels that may challenge strollers or limited mobility visitors.
The guided tour typically includes round-trip ferry fare and guided access to the island’s main ruins and tunnels; check your booking details for any additional inclusions.
Sarushima served as a coastal defense from samurai-era lookouts through Meiji and early 20th-century fortifications; many brick batteries date to Japan’s modernization of coastal defenses.
The island’s vegetation and ruins are fragile—stay on marked paths, avoid touching masonry, and carry out all litter to minimize impact.
DeepExperience operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.
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Book directly with DeepExperience for the best rates and real-time scheduling.
Reserve Now