Blackfellows Caves, Australia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Blackfellows Caves, South Australia, Australia, is known for its proximity to the picturesque coastline and the nearby Canunda National Park. The best time to visit Blackfellows Caves, Australia, is during the summer months of December to February, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-20°C (64-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!