Walker Bay holds the densest congregation of southern right whales in the Southern Hemisphere between June and December, when females calve in the sheltered waters two hundred metres from Hermanus's rocky coastline.
The town's cliff-path infrastructure and shallow breeding bays create the only land-based whale watching venue in the world where visitors observe breaching, tail-slapping, and nursing behaviour without boarding a vessel. UNESCO recognised the site's marine significance in 2003, and the annual whale census recorded 198 individual southern rights in the 2025 season alone.
The 120-kilometre route from Cape Town traces the R44 coastal road through Gordon's Bay and Betty's Bay, where the Kogelberg Biosphere's fynbos slopes meet the Atlantic. Most Cape Town to Hermanus whale watching tours depart the city by 08:00 to reach Walker Bay during the whales' morning feeding activity, when calves surface every three to five minutes. The Old Harbour precinct serves as the terrestrial viewing hub, its Victorian-era stone jetty extending into the bay where mothers position their young in water shallow enough for tourists to hear exhalations through blowholes. Hermanus employs the world's only whale crier, a tradition since 1992, who signals sightings with a kelp horn from vantage points along the twelve-kilometre cliff path that ribbons from New Harbour to Grotto Beach.
Commercial boat-based whale watching operates under strict National Environmental Management regulations: vessels maintain a 300-metre exclusion zone and limit engine time to 20 minutes per encounter. Operators launch from New Harbour between 09:00 and 15:00, weather permitting, with sea conditions calmest before 11:00. The marine sanctuary extends seven kilometres offshore and prohibits jet skis, creating an acoustic environment where whale vocalisations carry underwater for thirty kilometres. Southern right whales, named for being the 'right' whale to hunt due to their buoyant carcasses, were reduced to fewer than 300 individuals globally by 1935; the Walker Bay population now numbers approximately 6,000 and increases at 7% annually, making Hermanus the most reliable shore-based viewing location on the African continent.
7 hr
