Streetdirectory.com Greenology is located in Changi District, Singapore. For a blast from the past, visit historical site like Old Changi Hospital and World War II remains like Changi Chapel & Museum and Changi Prison. Locals can engage in leisure activities like picnicking and fishing at Changi Beach and Aloha Changi Chalets. Those interested in sailing or windsurfing can head to the nearby Changi Sailing Club and Changi Beach Club. Golf enthusiasts will enjoy the undulating terrains of Changi Golf Club in which the eighth hole was once listed in the Guinness Book of records as the narrowest in the world. Above all, Changi is most well-known for its local food like nasi lemak at Changi Village Hawker Centre.