Certainly! Visiting Eger, Tokaj, and Pécs in Hungary can be a fantastic experience. Here are some travel tips:

Best Time to Visit:
The best time for travel in these regions are from April to October. The weather is generally mild during this time, making it perfect for walking tours and vineyard visits.

Route and Accessibility:
Train and bus services are readily available and very convenient in Hungary. From Budapest, you can reach Eger by a direct train in about 2-2.5 hours. For Tokaj, you can take a train directly from Budapest which takes about 3-3.5 hours. Pécs can also be reached by direct train from Budapest within 3 hours.

Altitude and Acclimatization:
The altitude of these cities is relatively low so altitude sickness is not typically an issue.

Accommodation and Booking:
It's better to book your accommodations in advance, especially during the tourist season. These areas have a variety of hotels and guesthouses suitable for different budgets.

Clothing and Essentials:
Pack according to the season of your visit. During the summer, light, airy clothing is appropriate. However, the temperature can drop at night, so always have a warm sweater or jacket on hand. Don't forget a good pair of walking shoes.

Health and Safety:
Hungary is considered to be quite safe. However, always be conscious of your belongings, especially in crowded areas. For health, it's advisable to have travel insurance.

Local Etiquette and Respect:
Hungarians place a great deal of importance on politeness and respect. Public drunkenness, loud and boisterous behavior is frowned upon. They also appreciate the efforts to try even a few words in Hungarian.

Remember, Eger is known for its castle, thermal baths, and the famous Bull's Blood wine, Tokaj is world-class wine region, and Pécs is known for its rich historical sites. Enjoy your trip!