The macaques are much less numerous than first time I came here and used to life near humans, most of the time they will not really care about you but do not take any food with you when you go there. I also have to remind you that if they bite or scratch you, you must go to the hospital with no delay because rabies is not eradicated in Thailand (I remind you that rabies is a fatal disease and once the symptoms appear, sometimes months later, it's too late to be treated).
See here a list of accommodations close to Wat Khao Chong Krajok
To go visit Wat Khao Chong Krajok, you can also book one of the tours above.
Wat Khao Chong Krajok is a temple and when you visit a temple in Thailand there are some rules to know and follow :