Hello! It's exciting to hear that you're planning a trip to Canada, visiting Vancouver, Whistler, Victoria, and Banff. Here are some travel tips for your tour.

Best Time to Visit:
The best time to visit these cities in Canada is during the summer months, from June to August, when the weather is quite pleasant. However, if you're a winter sports enthusiast, Whistler and Banff are perfect destinations for skiing from December to March.

Route and Accessibility:
Begin your tour at Vancouver, which is well-connected by international flights. From Vancouver, you can take the BC Ferries over to Victoria. To reach Whistler, it's a two-hour drive along the Sea-to-Sky Highway from Vancouver. Banff, in Alberta, is a bit further - you can either take a flight to Calgary and then drive, or use the Greyhound bus services.

Accommodation and Booking:
There's a wide range of accommodation options in all these locations, from luxury hotels to budget hostels. It's recommended to book your accommodations well in advance, especially during the high season. You can make the bookings through various online platforms like Booking.com or Airbnb.

Clothing and Essentials:
Pack layers – even in summer, temperatures can fluctuate. For Whistler and Banff, pack winter clothing if you're going during the ski season. Also, a good pair of walking shoes, sunblock, a swim suit, and a waterproof jacket would be beneficial. Don’t forget your camera for the stunning sceneries!

Health and Safety:
Generally, these areas are quite safe. But, take note of wildlife when in Banff National Park. It is always good to have travel insurance. If you are going skiing or hiking, make sure you have the necessary safety equipment and adhere to safety guidelines.

Local Etiquette and Respect:
Canadians are known for being polite and courteous. Tipping is customary in restaurants, taxis and for services. Avoid littering and adhere to local laws and regulations, especially in national parks to respect wildlife and their habitats.