Hello! That sounds like an exciting trip. Here are some travel tips for your journey to Venice, Florence, and Rome:

Best Time to Visit:
The best time to visit Italy, which includes Venice, Florence, and Rome, is during Spring (April to June) and Autumn (September and October). During these months, the weather is pleasant, and tourist crowds are smaller.

Route and Accessibility:
You can reach Venice by air via the Venice Marco Polo Airport. From there, you can use trains, buses, or water taxis to navigate the city. For Florence and Rome, you can use the well-connected Italian train network from Venice.

Accommodation and Booking:
All three cities offer a range of accommodations from budget hostels to luxury hotels. Booking in advance via popular booking sites can provide you with more options and better price deals.

Clothing and Essentials:
Make sure to pack comfortable walking shoes as you'll do a lot of walking in these cities. Light clothing for the warmer months and layers for the cooler months are recommended. Don't forget essentials like sunscreen, a hat, and a portable water bottle.

Health and Safety:
Italy is relatively safe for travellers, but it's always sensible to take precautions. Keep your belongings safe, maintain travel insurance, and be informed about the local emergency numbers.

Local Etiquette and Respect:
Italians appreciate politeness and formal behavior. In religious sites, dress modestly and respect the silence. Tipping is not mandatory but is appreciated in restaurants and taxis. Try to learn a few basic phrases in Italian to interact with locals.