The Top of Fire Mountain
Although other races may come and go freely, the summit of Fire Mountain is very taboo for Nubari. This taboo is lifted only once a year during the Ritual of Sacrifice. It is likely the taboo springs from the location being a place of religious significance to the Nubari during the Ritual of Sacrifice. But that does not explain why the elders of the korobokuru are able to make their religious pilgrimage there once a year to try to spot their god War’dango, and yet the race does not consider the place taboo.