Hi Sandra,

It would be hard to confirm the source of the aroma as it really does vary during the year. The dense jungle along the Hana Highway is home to numerous flowering plants that emit scents at different times during the year. It always smells pretty special but when there is a large bloom of a particular flower then it can get really incredible.

There is a large amount of Pikake, or Arabian Jasmine (Jasminum sambac) that flowers along the road. Unfortunately, this is actually invasive but it has been there a long time now and is considered Naturalised. This could easily have been the source of your scent.

Thanks

Steve