Sandy beaches. Golden beaches. Paddle Pops. There's nothing quite like an Australian summer - or an Australian summer house. Here, 16 chic retreats to spend the season in...from $145 a night. By Alissa Jenkins Under $200 Sunset Villa, QLD Beach Huts Middleton, SA Koda Beach Bungalow, QLD Le Soleil, SA Three Hummock Island, Tas Hyams Beach Seaside Cottages, NSW Sorrento Cottage, Vic Millers Rest, Vic $200 - $300 Adventure Bay Retreat Cottage, Tas Happy Shack, NSW Gidget goes to Culburra, NSW Bear Gully Coastal Cottages, Vic Windsong Beach House, SA Lantana Cottage, WA $300 -$400 Sunsan's Beach...