Poland is a member of the EU’s common border zone, the Schengen Area, and frontier crossings to neighbouring EU countries, including Germany, the Czech Republic, Slovakia and Lithuania, don't involve checks of passports or visas.
This situation does not apply for visiting Belarus, Ukraine, or Kaliningrad, which is an exclave of Russia.
A 30-day visa-free regime is in place for most visitors as long as they arrive in and depart from Minsk National Airport. If arriving or departing by land, everybody needs a visa – unless you are targeting either Brest or Hrodna, the two visa-free zones, or if you're hiking into Belarus from Białowieża National Park.
For stays longer than 30 days, everybody needs a visa.
Citizens of the EU, USA and Canada do not need a visa for stays of up to 90 days in a 180-day period, but citizens of South Africa, Australia and New Zealand need to get a visa in advance. Check the Ukrainian Foreign Ministry website (www.mfa.gov.ua) for details.
Most travellers need a Russian visa to enter Kaliningrad. Apply at the Russian embassy in your home country, and allow at least four weeks for processing.
EU citizens need only a valid ID to travel in Poland. For everyone else, a passport is required. Note some airlines may deny travel to passengers whose passports are within six months of expiration from the date of departure.
More information you can find via the following links:
Warsaw (www.warsawtour.pl) Official tourist website.
City of Warsaw (www.um.warszawa.pl) Official website of the city.
Warsaw in Your Pocket (www.inyourpocket.com/warsaw) Highly opinionated and often amusing reviews.
Warszawa Warsaw (https://warszawawarsaw.com) Local insight into what's best about the city.
Lonely Planet (www.lonelyplanet.com/poland/warsaw) Destination information, hotel bookings, traveller forum and more.
Warsaw City Transport (www.ztm.waw.pl) Information on public transport in the capital (on the English-language website, click on Information and Travel Without Barriers).
Accessible Poland Tours Specialises in organising tours for travellers with disabilities and mobility problems.
Nie Pelno Sprawni (www.niepelnosprawni.pl) Polish language only, for up-to-date information on the current situation for people with disabilities in Poland.