Mae Surin Waterfall is a single level waterfall that flows down from a steep cliff with a height of about 80 meters and is considered one of the tallest waterfalls in Thailand. You can see it from the top viewpoint, or you can go down another way and hike during 2-3 hours to see it from the bottom, walking pass rivers and other smaller waterfalls. didn't have the courage to do it, but I've seen some very nice photos, that's why it's in the ebook ;) Best time is in morning and drones are not allowed as it's in a national park.