Usually in the long trail going to this beautiful waterfall is common what I think is Isma bononia bononia,
The Lesser Long-spot Flitter - Isma bononia bononia
but this one looks a bit different (I.umbrosa?). Usually now for this kind of butterflies I try to capture to have a certain identification, but this one managed to escape
Isma sp.
For your information, this is instead is
The Ciliate Long-horned Flitter - Isma iapis iapis
and this is
The Bicolour Long-horned Flitter - Isma protoclea obscura
same location, managed to analyze the specimens.