Travel documentation refers to the essential papers and identification required for traveling, especially across international borders. This typically includes a passport, which serves as proof of identity and nationality, and may also involve a visa, granting permission to enter a specific country. Other documents can include boarding passes, travel insurance, and itineraries. Having the correct travel documentation is crucial for a smooth journey. Travelers should ensure that their passport is valid for at least six months beyond their planned return date. Additionally, it's important to check the specific entry requirements of the destination country, as these can vary widely and may change frequently.