Catio Carnival in Catio
Catio, capital of Guinea-Bissau's southern Tombali region, sends a delegation to the national Carnival parade in Bissau each year, but no independently documented, town-level Catio Carnival with its own date or venue was found. Tombali's relative remoteness from the capital likely limits press coverage of any local carnival-season activity in the town itself, so what happens in Catio specifically is inferred rather than confirmed.
Catio is the administrative capital of Tombali region in the far south of Guinea-Bissau, a river town historically reached mainly by boat before overland roads into the region improved.