Sunway Lagoon is an amusement park located in Sunway City, Subang Jaya, Selangor, Malaysia. It is owned by the Sunway Group. The park began operating in 1992 and was officially opened by the former Prime Minister of Malaysia, Mahathir Mohamad, on 29 April 1993. It was opened to the public with two park attractions, the Water Park and Dry Park. …Sunway Lagoon is an amusement park located in Sunway City, Subang Jaya, Selangor, Malaysia. It is owned by the Sunway Group. The park began operating in 1992 and was officially opened by the former Prime Minister of Malaysia, Mahathir Mohamad, on 29 April 1993. It was opened to the public with two park attractions, the Water Park and Dry Park. Later, on 29 April 1993, Mahathir Mohamad officiates the opening of Sunway Lagoon.