The scene is of handmade buckets of dye. Slaves + workers (who were underpaid + so skinny + frail) would dye the leather in these buckets. This is how they get such rich colors over there. It was beautiful to see in person.
Explore the ancient caves of Hang Son Doong, Vietnam. Hang Son Doong is one of the largest caves in the world and features a fast-flowing underground river. For spelunkers, exploring Hang Son Doong is the equivalent of scaling Mount Everest.