Automobile insurance policies issued in one's own country are often invalid in foreign countries, and it is often a requirement to obtain temporary auto insurance valid in the country being visited. It is also advisable to become oriented with the driving rules and regulations of destination countries. Wearing a seat belt is highly advisable for safety reasons; many countries have penalties for violating seatbelt laws. In some countries, non-local internal travel may require an internal passport, while international travel typically requires a passport and visa. A cruise tour is a voyage and land tour combination, with the land tour occurring before or after the voyage. Unless otherwise noted, optional services such as airfare, airport transfers, shore excursions, land tour excursions, etc. are not included and are available for an additional cost. External links to other Internet sites and listings of private entities on this page are provided as a convenience and should not be