Thailand: Early morning fishing boats on Ao Prachuap (Prachuap Bay), Prachuap Khiri Khan. In historical terms, Prachuap is significant as one of the seven landing points where Imperial Japanese troops stormed ashore in 1941, on their way south to occupy Malaya and Singapore. The town is ringed on the land side with rugged limestone mountains, one of which, Khao Chong Krajok, or mirror tunnel mountain, is pierced with a natural opening that appears not unlike a giant mirror, and which is perhaps the towns most famous natural landmark.