Adventure Bay, Australia offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Adventure Bay is known for its stunning natural landscapes, including the Fluted Cape and the South Bruny National Park. The best time to travel to Adventure Bay, 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 17-20°C (63-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!