Absolutely! Exploring Vienna, Salzburg, and Innsbruck will be a delightful experience. Here are some travel tips for you:

Best Time to Visit:
The best time to visit Vienna, Salzburg, and Innsbruck would be in the spring (April to June) or in the fall (September to October) when the weather is pleasant. However, if you are a winter sports enthusiast, visiting Innsbruck in the winter (December to March) will provide opportunities for skiing and snowboarding.

Route and Accessibility:
You can start your journey in Vienna, which is accessible by flights from most international destinations. Train services connect Vienna, Salzburg, and Innsbruck, offering a scenic route through Austria's countryside.

Altitude and Acclimatization:
Vienna and Salzburg are located at low altitudes, so no acclimatization is required. Innsbruck, on the other hand, is at a higher altitude, surrounded by mountains. However, changes in altitude are moderate and shouldn't significantly affect travelers.

Accommodation and Booking:
In all three cities, you will find various types of accommodations from luxurious hotels to budget accommodations or guesthouses. Booking in advance is always recommended to secure the best prices.

Clothing and Essentials:
If visiting in the spring or fall - carry medium weight clothing and a sturdy pair of walking shoes. Remember to pack a waterproof coat/jacket for unexpected showers. If visiting in the winter - pack warm clothes including a jacket, hats, gloves, scarves, and thermal wear.

Health and Safety:
Austria is generally a safe country with excellent healthcare services. Carry any personal medication and a basic first aid kit. If you plan to participate in winter sports in Innsbruck, appropriate insurance is advised.

Local Etiquette and Respect:
Austrians value politeness. A standard greeting when entering shops and restaurants is 'Grüß Gott' (greet God). Respect the local culture, traditions, and environment. Dress conservatively when visiting religious places.

Have a fantastic trip exploring Austria's rich history, nature, and vibrant culture.