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A twenty-dollar app for a visa, a border that reads phones, and upside-down seasons
Australia's entry rules are simple to satisfy and easy to get wrong. Most short-stay visitors need an electronic visa before boarding, everyone signs a biosecurity declaration on the way in, and the tropical north runs on a wet-and-dry calendar that has nothing to do with the summer and winter of the south. None of it is difficult if you have read it once; all of it is awkward to sort out in an arrivals hall.
The ETA costs AUD 20 and nothing else
Home Affairs states plainly: "There is a service charge of AUD20 to use the Australian ETA app. There is no other charge payable for an ETA." The subclass 601 is applied for through the app rather than a web form.1
Three months per entry, not three months total
Both the ETA (subclass 601) and the eVisitor (subclass 651) allow a stay of "up to 3 months at a time", so the clock restarts on each arrival rather than running down across the year.1,2
Which one you need depends on your passport
The two visas cover different passport lists. The eVisitor is the European-passport route and the ETA covers a separate set of eligible countries, so check which listing names your passport before you pay anything.1,2
Our take: apply a week out, not the night before. Home Affairs says most ETA results come back immediately but warns against making travel arrangements before the grant, and a referred application can take days. Anything charging you more than AUD 20 is a middleman, not the government.
Food goes on the Incoming Passenger Card
The Australian Border Force is explicit that "food items brought into Australia need to be declared on your Incoming Passenger Card if you come by plane, or on the parcels you mail", and biosecurity officers may inspect what you are carrying.3
Officers can examine and copy what is on your phone
Border Force officers exercise powers under section 186 of the Customs Act 1901 to examine goods, and the ABF states that a "document" for these purposes "includes information stored on mobile phones, SIM cards, laptops, personal electronic recording apparatus and computers".4
A device held for forensic examination is kept until it is finished
The ABF says devices retained under section 186 are held "for as long as reasonably necessary to complete the examination", and that refusing access can make the examination take longer.4
Our take: declare the snack. Declaring costs you a queue and a bin; not declaring is what turns into an infringement notice. And if you carry work devices, travel with them in the state you would be comfortable having looked at. That is a boring precaution everywhere, and Australia publishes the powers in plain English.
The tropical north runs on wet and dry, not four seasons
Tourism Australia dates the wet season from November to April and the dry season from May to October across Darwin, Broome, Cairns and the Whitsundays, with heavy rain and tropical storms through the wet.5
Seasons are inverted against the northern hemisphere
Australian summer falls in December to February and winter in June to August, so a European or North American summer holiday lands in the Australian off-season in the south.5
The wet is also stinger season on the reef
During the wet season, swimming on the Great Barrier Reef means stinger suits, which is a planning constraint rather than a detail if snorkelling is the point of the trip.5
Warnings come from one national service
The Bureau of Meteorology publishes cyclone, flood, fire-weather, severe-weather and tsunami warnings nationally, along with UV and long-range forecasts.6
Our take: end of the wet, around April and May, is the quiet sweet spot in the Top End: waterfalls still running, roads mostly reopened, crowds not yet arrived. If your trip is built around the reef, bias towards the dry season and accept the higher prices.
Sydney takes a bank card straight off your phone
Transport for NSW says "to pay your fare you can use a credit or debit card, linked device or an Opal card", so a short visit does not need a separate transit card at all.7
Distances are the trip-planning constraint
The east-coast cities are separated by flight-length gaps rather than train-length ones, and an itinerary that reads as a short hop on a map is usually a domestic flight plus an airport transfer at each end.
Our take: tap on with the same card or phone you tap off with, and do not mix a watch on the way in with a plastic card on the way out. Beyond the cities, assume you are flying or driving, and price the drive in hours rather than kilometres.
Australia's population hugs the coast and so does its mobile coverage: the cities and the main highways are well served, and the gaps start the moment you turn inland or drive a national-park road. What visitors actually need data for is unglamorous: the ETA app before you board, tap-and-go transport fares, Bureau of Meteorology warnings during cyclone and fire season, and the maps for drives long enough that a wrong turn costs an hour. Download offline maps for any regional leg and treat coverage between towns as optional rather than assumed.
AUD 20, and that is the whole cost. Home Affairs states there is a service charge of AUD 20 to use the Australian ETA app and no other charge payable for an ETA. If a site is quoting you more, you are paying an agent on top of the government fee. European passport holders should check the eVisitor (subclass 651) listing instead, which is the separate route for those passports.1,2
Yes. Food has to be declared on your Incoming Passenger Card, and biosecurity officers may inspect it. Declaring an item that turns out not to be allowed means it gets surrendered; not declaring it is the version that carries a penalty. The card asks about plant and animal material and about gear that has been in contact with animals or worn in rural areas, so hiking boots count.3
They have the power to. Under section 186 of the Customs Act 1901, Border Force officers can examine goods, and the ABF's own guidance says a "document" includes information stored on mobile phones, SIM cards, laptops and computers. Devices held for forensic examination are retained for as long as reasonably necessary, and the ABF notes that giving access can shorten the process.4
It depends which Australia. Sydney and Melbourne are at their best in the southern spring and autumn, when summer heat and winter rain both back off. The tropical north is the opposite question: the wet season runs November to April with heavy rain, storms and stingers on the reef, and the dry season runs May to October. Booking a July trip because it is summer at home puts you in the Australian winter.5
Every price, date and rule above is taken from the operator, museum, city or ministry that sets it, and was checked against that source on September 1, 2026. Lines marked "Our take" are our own recommendation, not a sourced fact. Fares, fees and opening hours change — confirm anything your trip depends on before you book.