The best containers in the wilderness are made from animal skins or stomachs, which have sufficient toughness and elasticity. They are excellent choices for carrying water or anything else.
The only problem is that these things are not easy to obtain. At least Bi Fang hadn't even seen a shadow of a large animal capable of being hunted.
In place of that, trees serve as a better material.
Bi Fang climbed up a giant tree's buttress root, chopped off a branch with his Stone Axe, and then slid down along the side, returning to the ground like going down a slide.
It just made his butt a bit sore.
The height of the entire tree was unknowable, but its underground roots were visibly massive, supporting the colossal canopy like pyramids, amazing many viewers from the north.
This is one of the most unique characteristics of tropical rainforest trees—the buttress roots.