I made a day trip drive from the town of Chanthaburi to Khao Khitchakut National Park. It's such a great view along the way around 30 kms. The national park covers a rich verdant forestland of some 58 square kilometers where many herbal plants are found, also rich in wildlife. We was be able to see the Khitchakut mountain in the distance before reach the national park. You can camping there but we only made a day visit. There is some accommodations, hourses, provided, all the houses look nice in forest area surrounding with mountain and small lake. (must make advance booking at the Forestry Department in Bangkok ) see some more photos at my travelogue.