Traveled here last Christmas and planning on returning again this winter. They have a very good Dinosaur exhibit as fossil were discovered here with an excellent nature hike.
However every year during the last two weeks of December and the first week of January they have their annual Daffodil extravaganza. The side of the mountain explodes into this incredible array of colors from the various types of flowers.
As well there is some incredible hiking trails, picnic areas and waterfalls nearby. Another Isan attraction not to be missed (especially if you are here during the festival time period).