We only stayed one night in Kaohsiungsan, and if you are the same, I would recommend visiting the cemetery in the afternoon when you arrive and get off the main road to see everything. Then, in the evening, I would recommend joining the night tour arranged by Jingoji. This allows you to see the cemetery at night and learn about it through your monk guide. However, the night tour must be taken off the main road, and at night, you will not be able to see all the details.