There's a lot of history behind this hidden park on a hill, tucked behind Jurong Bird Park. Also known by its Malay name, Bukit Peropok, this is the highest point in Jurong and was a significant spot during the development of Jurong New Town in the 70s. Jurong Town Corporation converted Jurong Hill into a park in 1968 and later on, the Modernist-style lookout tower was opened in 1970. The area was a recreational space for Jurong's residents... and also some pretty important foreign guests.
Besides the clear views of nearby Jurong Island and Jurong town itself, the park also houses a Garden of Fame where heads of state and other dignitaries have planted trees to commemorate their visit – including Queen Elizabeth II. You can find up to 30 trees planted on the grounds – the Garden of Fame itself moved to the grounds of Jurong Town Hall because of the lack of space. Today, you can still make the trek up from Jurong Bird Park (but you can also drive up) and climb up the famous lookout tower.