Situated at the northeast corner of Hong Kong Island overlooking the eastern approach to the Victoria Harbour, Lei Yue Mun occupied a strategic position.

In 1885, the military decided to build a permanent infrastructure at Lei Yue Mun and later in 1889, the land was transferred to the War Department for the construction.

At 7:45 PM, a detachment of Japanese soldiers along with collaborators, in a lorry, broke through the fence, using bombs and killed the British sentries at the Sai Wan Antiaircraft Battery.

[2] After the Lyemun Barracks were left disabled and were handed over to the Government, the Southern Part was converted into the Lei Yue Mun Park and Holiday Village, while the headland was left unused and lost until it was converted into the Hong Kong Museum of Coastal Defence in 2000 (Does not include the Pak Sha Wan Battery and nearby structures).

By March, the total number of infected people have reached over 200, 137 of those residing in Block E. By the end of the month, the government issued an order to transfer the remaining unaffected residents of Block E into isolation in the Lei Yue Mun Park and Holiday Village and the Lady MacLehose Holiday Village in Sai Kung.

The buildings of the previously known Lyemun Barracks were converted into Lei Yue Mun Park and Holiday Village, with a number of exceptions.

In May 2016, the Food and Environmental Hygiene Department proposed converting the then deactivated Block 3 into a quarantine facility, with the function to prevent epidemics from spreading in case of an outbreak.

Major changes included the floor, replacing plastic texture sheets with polished wood tiles, with parts of walls and pillars fitted with dark marble coatings, and general lighting improvements.

Another drawing depicts the locations of these buildings on a hand-drawn map, suggesting that Block 10 was originally built to be shorter in length, but was extended subsequent to the demolition of the Married Quarters, which occupied said space.

Along the road are buildings previously part of the Lyemun Barracks, alongside the Pak Sha Wan Battery, which were left isolated and lost from the Holiday Village, now claimed as property of the Hong Kong Museum of Coastal Defense.

Maintenance along this area is shown to be poor, as leaves and fallen tree branches are often found, with a car parking gate left closed at the end of the bridge, the road then continues to the deactivated and isolated blocks of the former Lyemun Barracks.

Situated on a small hillside beside the Eastern Corridor, the green and white structure uses a different color scheme than other buildings, and was formerly used as a Changing Room for soldiers before pool training.

Block 1's structure remains intact, though in poor condition, with glass pieces and layers of dried up paint scattered across the rooms, with broken doors and showering facilities gone rusty.

Several signs pasted on the walls and pillars have also deteriorated and not legible, with both the main swimming pool, and two other hot tubs blocked off with concrete.

The white structure remains intact with significant evidence of deterioration, with chipped paint on walls peeled off and broken floor tiles.