Causeway Lake, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Causeway Lake, Queensland, Australia, is known for its proximity to the Capricorn Coast and the nearby Great Keppel Island. The best time to travel to Causeway Lake, Australia, is from September to November, with average air temperatures around 25°C (77°F) and water temperatures approximately 23°C (73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!