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Wakayama · nature

Tomogashima: The Real-Life Castle in the Sky off Wakayama

友ヶ島

Last updated 2026-05-27

Brick arches of an abandoned Meiji-era gun battery on Tomogashima, reclaimed by forest
Photo: Hiroaki Kaneko · CC BY-SA 3.0 · via Wikimedia Commons

Tomogashima sits in 和歌山市 as one of the places the data keeps pushing to the top of the list. Abandoned Imperial-era gun batteries reclaimed by forest — widely described overseas as the real-life 'Castle in the Sky (Laputa)'. Frequent on r/JapanTravel.

Why it matters

Beyond Kansai grades Tomogashima as T1 — top priority — at confidence A. English information online is partial, mostly on the official site and a handful of Reddit threads.

Getting there

Nearest station: 南海加太駅. From Nankai Kada Station to Kada Port, then about a 20-minute ferry. Ferry runs seasonally (roughly March–November); always check the schedule before going.

How to do it right

  • The abandoned Meiji-era gun batteries
  • Catching the seasonal ferry from Kada
  • What to bring and safety notes for the ruins

When to go

Crowd data hasn't been calibrated for this spot yet.


Tier T1 · Confidence A · Last verified 2026-05-27 · Source methodology in Sources & methodology. Partially generated with AI assistance and editor-verified.