Recommend Brazil's whale season for clients seeking a wild, once-a-year natural spectacle — curated by our DMC partner Blumar. Every year, humpback whales travel thousands of miles from Antarctica to Brazil's warm coastal waters to mate, calve, and raise their young, with peak season running now through November (best sightings in August and September). The top spot: Abrolhos National Marine Park off the coast of Caravelas, Bahia — the most important humpback breeding ground