Marsiling WWII Tunnel & Naval Base
There are many abandoned places in Singapore that you and your boo can visit for a spooky Valentine's. One of them is the Marsiling WWII Tunnel & Naval Base, a military underground tunnel that is located deep in the thick jungle between Admiralty Road West and Marsiling Crescent. It was used by the British Royal Air Force as a storage facility and left abandoned after independence in 1965. It'll take you a good while to bash through the thick foliage, before squeezing through a small entrance into the pitch-black tunnel. Mmmm, romantic.