We woke up early on our second day in Pai so we could pack in as much action as possible. The highlight of the day was an early morning hike to Mae Yen Waterfall. Luckily we did some research online beforehand, as this was a pretty serious trek (14km out and back) that required plenty of water and proper footwear for its dozens of river crossings. The early morning paid off; when we made it to the waterfall we had it entirely to ourselves. On the way back out we issued cautious words of encouragement to set after set of ill-prepared, visibly hungover backpackers. Many of them probably joined a common statistic of hikers who end up having to turn around before reaching the isolated falls.