How to Get Tree Bark in Windrose

Tree Bark is harvested from Divi Divi trees in the Foothills Biome. Its discovery unlocks the Tanning Rack, Tannin, Tanned Leather and the Bosun Backpack.

If you purchase Merchant Contract: Natural Resources from the People of Tortuga you can purchase 50 Tree Bark for 50 Piastre.

Tree Bark is used to produce Tannin, a resource used at the alchemy table to treat hides and furs.