Hello, it's great to hear that you're planning a trip to Beijing and Tianjin. These are some important travel tips for your upcoming journey.

Best Time to Visit:
The best time to visit Beijing and Tianjin is from March to May during spring, and from September to October during autumn. These periods offer the most pleasant weather and fewer tourists.

Route and Accessibility:
Beijing and Tianjin are well-connected. You can reach Beijing via international flights, which land at Beijing Capital International Airport. Tianjin is just an hour's drive southeast of Beijing or around 30 minutes by high-speed train.

Accommodation and Booking:
There is a wide range of accommodations available in both cities, from luxury hotels to budget hostels. Booking can be done easily through various online platforms. It's advisable to book in advance to secure your preferred choice.

Clothing and Essentials:
For spring or autumn, carry layers as temperatures can vary. A good pair of walking shoes is a must as both cities have lots to explore on foot. Don't forget essentials like a water bottle, sunscreen, and a portable charger for your devices.

Health and Safety:
Make sure you're up-to-date on routine vaccines before your trip. Hygiene standards can vary, so be cautious when eating street food. Tap water in these cities is not recommended for drinking. It's always safe to buy bottled water.

Local Etiquette and Respect:
Chinese are polite and reserved, so try not to be overly loud or boisterous. Respect their customs and traditions. In public places, it's expected to wait patiently in lines and not jump ahead of others.