Yes, most visitors to Australia require a visa. The type of visa you need will depend on the purpose of your visit, such as tourism, work, study, or migration. It's essential to check the visa requirements that apply to your specific circumstances and apply for the appropriate visa before your trip. 

The currency in Australia is the Australian Dollar (AUD). It is recommended you exchange your currency to Australian dollars before your arrival or upon arrival at the airport or local currency exchange services. 

Australia has a robust healthcare system and emergency medical care is available to all visitors through public hospitals. However, it is highly recommended you obtain appropriate travel insurance that covers any medical expenses during your stay in Australia. 

Australia is vast and spans multiple time zones. The time zones range from Australian Eastern Standard Time (AEST, UTC+10) in the east to Australian Western Standard Time (AWST, UTC+8) in the west. It's important to check the specific time zone of the region you will be visiting or residing in. 

Australia experiences a wide range of climates due to its size. The northern regions have a tropical climate with warm temperatures year-round, while the southern regions have more distinct seasons. It is advisable you research the weather conditions of the specific area you will be visiting and pack accordingly. 

Australia has an extensive transportation network, including domestic flights, trains, buses and ferries. Major cities also have public transportation systems like trains, trams and buses. Renting a car is a popular option for exploring more remote areas. Each city has its own transportation options and systems, so it's recommended you research the specific city you'll be visiting. 

Yes, Australia has strict customs regulations and restrictions. Certain items such as food, plants, animal products and medications may be subject to import restrictions or require permits. It's important you familiarise yourself with Australia's customs regulations to avoid any issues when entering or leaving the country. 

In case of emergency, dial 000 for immediate assistance. This number connects you to police, fire or medical services. 

Australia is a multicultural society with diverse customs and traditions. Australians are known for their friendly and laid-back nature. It is important to be respectful of cultural diversity, observe local customs, and practice common courtesy when interacting with locals. 

Australia is renowned for its natural beauty and iconic landmarks. Some popular attractions include the Sydney Opera House, Great Barrier Reef, Uluru (Ayers Rock), the Great Ocean Road, the Daintree Rainforest, and the stunning beaches in various coastal regions. 

Remember to consult official government websites or contact relevant authorities for the most accurate and up-to-date information regarding visas, customs regulations, and travel requirements when planning your visit to Australia.