- Caiguna city is a small town located in Western Australia, about 1,065 kilometers (662 miles) east of Perth. It is situated along the Eyre Highway, which is the main road connecting Western Australia with the eastern states. Caiguna city is known for being the gateway to the Nullarbor Plain, which is a vast, treeless plain. The town itself has limited amenities, including a roadhouse that provides fuel, accommodations, and basic supplies for travelers passing through. Caiguna city is primarily a stopping point for people traveling along the Eyre Highway and exploring the surrounding natural attractions, such as the Great Australian Bight and the Nullarbor Caves.