The Root Bridges of Cherrapunji
atlasobscura.com
atlasobscura.com
Explored a lot of beautiful and exotic places there, including standing atop the mountains where, besides seeing multiple waterfalls nearby, you can also see the rivers that connect Bangladesh (I think). Unfortunately, did not get to see these Root Bridges.
English is the official language of the place.
Willow for example seems perfect for this application, it roots very easily, is weavable, and doesn't mind damp conditions