The main site of modern day Prambanan complex is inside a large, landscaped park. The complex is open daily from 6AM to 6PM/entrance ticket box closed at 17.15. Try to get there early to beat the heat. Entry costs Indonesians less than $4, while foreigners are charged a fixed tourist rate of US$18 162,000 Rp or US$9 /Rp81.000.for a registered student. Guides can be hired at the ticket office for about US$8 75,000 rp and as this is a complex monument, a guide is a very good idea.