Sunnys Adelaide Backpackers Hostel. FREE WIFI, DAILY HOT PANCAKE BREAKFAST & FREE CAR PARKING. Sunnys More than just a bed; its like staying at a mates place. Welcome to Sunnys, the smallest and friendliest hostel in Adelaide. Sunnys has been serving the international traveler since 1986 and has earned a reputation for providing a caring and safe home away from home while you explore our city and surrounding attractions. As one guest so well said, Its like staying at a mates place.