Hello! It's fantastic that you're planning a trip to Gelsenkirchen, Bayreuth, and Munich. Here are some travel tips to help you prepare for your journey.

Best Time to Visit:
The best time to visit these cities in Germany is from May to September, when the weather is warm and pleasant. Keep in mind that it can get crowded during the summer holiday season(July-August), so plan your trip accordingly.

Route and Accessibility:
All of these cities are well-connected by Germany's efficient rail and highway system. Starting from Gelsenkirchen, you can easily reach Bayreuth and Munich by train or car. If you prefer to fly, there are airports near all these cities with easy access to the city center via public transportation.

Accommodation and Booking:
For accommodation, there is a wide range of options from luxury hotels to budget hostels. It's best to book in advance through popular online booking platforms like Booking.com or Airbnb to secure your preferred choice. Remember that prices can soar during peak tourist season.

Clothing and Essentials:
Pack clothing depending on the season of your visit. For summer, bring lightweight clothing, sunglass, and sunblock. For colder months, warm clothing with layers is a must. Don't forget a good pair of walking shoes as German cities are best explored on foot!

Health and Safety:
Germany is generally a safe country to travel with a good healthcare system. However, it's recommended to have travel insurance for emergencies. Ensure you have necessary immunizations before travel and carry a first-aid kit for your own comfort.

Local Etiquette and Respect:
Germans are known for their punctuality and rules. Ensure to be on time for appointments and respect local customs and traditions. Try to learn a few basic phrases in German as it can help in your interaction with locals.