Planned route as seen from capture from Google Maps.
1. 9:30 am. Start Point. Rifle Range Road. Next to sign at Singapore Technologies
2. Walk to Petaling Hut. Entry Point to jungle.
3. Search for the ruins. Expected arrival at ruins is 12:00 pm, noon.
4. Lunch. 12:00 pm at ruins.
5. Exit at Petaling Hut. 1:30 pm.
6. Exit point Venus Loop. Parking lot. 3:30 pm or so.