Later on this year (specifically, late July / early August), My wife (a dual US / Australian citizen), myself (Australian citizen) and my brother (Australian citizen) are planning a UK / European sightseeing trip. The plan is to depart Australia, arrive in London, stay there for a week, then get on a tour bus and spend 12 days in Europe on a bus tour (specifically, France, Switzerland, Italy, Austria, Germany and Netherlands) before flying from The Netherlands back to Australia
I know that to enter the UK I need an ETA. I know where to grab that from, but when I look up what's required to travel to Europe, all I see is information about EES / ETIAS which is possibly coming in mid-2025, or late 2025, or some time in 2026, I'm not entirely sure.
A few sites I've seen say that I don't need anything to enter Europe, just a valid passport (obviously), and that because our journey is exclusively in the Schengen area and under 90 days, we'll be fine.
I can stop by a travel agent and get them to sort this out, but I'm sorta keen to organize this trip without one (and this'd be my first independently organized international trip) so I want to make sure I have all my info correct so I don't mess things up.
So basically, in order to fly to the UK from Australia and spend just short of 3 weeks in the UK and Europe, what else, other than an ETA, do I need, and where can I apply for them?