Hello! Excited to hear about your planned visit to Góra Kalwaria, Warsaw, and Kraków in Poland. Here are some useful travel tips for you.

Best Time to Visit:
The best time to visit Poland is from May to September when the weather is warm and the days are longer. But remember, tourist attractions might be crowded. If you prefer a lesser crowd, consider visiting during the autumn months from September to November.

Route and Accessibility:
You can easily access Góra Kalwaria, Warsaw, and Kraków by air through the Warsaw International Airport or the Kraków Airport. From the airport, you can take a taxi or a local bus to reach any of these cites. Public transportation like buses and trams are available in all three cities and intercity trains connect Warsaw and Kraków.

Accommodation and Booking:
There's a wide range of accommodations available in Warsaw and Kraków including luxury hotels, mid-range hotels, and budget hostels. Also, private apartment rentals are popular. It's advisable to book your accommodation in advance for better deals and options, especially during peak season.

Clothing and Essentials:
Pack comfortable walking shoes as these cities are best explored on foot. Also, carry a good quality raincoat or umbrella as sudden rain showers are common even during summer. For summer, light clothing is fine, but a jacket or cardigan may be needed for cooler nights. In autumn, carry warmer clothing.

Health and Safety:
The tap water in Poland is safe to drink, and healthcare facilities are of a good standard. However, ensure you have appropriate travel insurance. Also, it's a good practice to keep the contact details of your local embassy handy.

Local Etiquette and Respect:
Poles appreciate courteous behavior. When entering churches and other religious sites, ensure you are dressed modestly. Also, keep your voice low to maintain the tranquility of these places. Tipping is expected in restaurants and for taxi drivers.