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The replica 15-inch gun at the Johore Battery
Heritage · Free · 24h

Johore Battery

A replica of a 15-inch WWII "Monster Gun" on the site of a former British coastal defence battery in Changi. Three such guns once defended Singapore's coast; the British destroyed them in 1942 during the fall of Singapore. Free, outdoors, open 24 hours.

15-inch

Gun calibre

1930s

Built

1991

Rediscovered

Free

24h

A coastal defence relic

The replica 15-inch Monster Gun at the Johore Battery site

Built in the late 1930s, the Johore Battery was part of Singapore's coastal defence system. It consisted of three 15-inch guns — nicknamed "Monster Guns" for their massive size. To prevent them falling into enemy hands during the fall of Singapore in 1942, the British destroyed the guns.

The site lay forgotten until 1991, when the Singapore Prisons Service rediscovered it. A replica of the 15-inch gun was recreated and the site is now a free outdoor attraction, with a few dining options around the area.

It is a quick heritage stop rather than a destination in itself — best paired with the Changi Chapel & Museum, which is the substantial WWII museum in the area, or Changi Village for food.

How to get there

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By MRT + bus

From Tampines East MRT (DT33) Exit D, take bus 29 and alight at the Changi Baptist Church bus stop (7 stops) — about a 7-minute walk to the site.

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By car / taxi

Set the destination to "Johore Battery, Changi". It is a short drive from Changi Airport or Changi Village.

Frequently asked questions

Is this the original gun?
No. The original three 15-inch guns were destroyed by the British in 1942 during the fall of Singapore to prevent them being captured. What stands on the site today is a replica of a 15-inch "Monster Gun", recreated after the Singapore Prisons Service rediscovered the site in 1991.
How long should I spend there?
It is a quick stop — 15–20 minutes is enough to see the replica gun and read the interpretive panels. Pair it with the Changi Chapel & Museum (the main WWII museum nearby) or Changi Village for food to make a half-day of the area.
How do I get there?
By bus: from Tampines East MRT Exit D, take bus 29 and alight at the Changi Baptist Church stop (7 stops), then a ~7-minute walk. By car or taxi: set the destination to "Johore Battery, Changi". It is a short drive from Changi Airport.
Is it suitable for children?
Yes — it is outdoors, free, and a single replica gun with history panels. It is a good, quick WWII-history stop for kids if you are already in the area, though the Chapel & Museum is the more substantial heritage visit.