Stay overnight at Phu Thap Boek is a good idea
At the end of each year, if you plan to travel to Thailand, I would suggest you to stay at Phu Thap Boek for a night or two and you'll fall in love with Phu Thap Boek, I bet.
At Phu Thap Boek, there are many accommodations with a nice atmosphere and beautiful view amidst the sea of mist.
If you stay overnight in one of the accommodations, you can admire the sea of mist in the morning from the bedroom and the mist will float and knock on the door of the room as well.
You can also experience the cool atmosphere and take a deep breath of fresh air amidst the mountains and mist when you open the door.