In Ein Hamad National Park, it's always fun, and in November-December, it is charming. The place is full of autumn leaves in different colors falling from the trees like in a Hallmark movie. Don't miss the lower compound, where a lot of fallen leaves exist.
The park is big; there are many places for picnics and for children to play. There is a regulated place for a barbecue.
You will also find here the remains of a Crusader fortress. On Saturdays, there are also free one-hour tours of the complex.
If you arrive on Saturday, I recommend arriving as early as possible because it fills up fast.