Cayman Islands Passport Requirements

U.S. citizens traveling by air to the Cayman Islands are required to have a passport to re-enter the United States, while those traveling by land or sea need to present either a passport or other proof of citizenships. Canadian citizens need to show a passport to visit the islands.

U.S. Citizens
Under the Western Hemisphere Travel Initiative, special rules apply to U.S. citizens traveling to Mexico, Bermuda and certain destinations in the Caribbean*.

U.S. citizens traveling by air are required to have a passport to re-enter the States. Anyone traveling by land or sea needs to present either (a) a passport, passport card or WHTI-compliant document; or (b) a government-issued photo ID, such as a driver’s license, along with proof of citizenship, such as a birth certificate.

As of June 1, 2009, most U.S. citizens entering the United States at sea or land ports of entry are required to show a passport, passport card, or WHTI-compliant document. They will no longer be allowed to use a government-issued photo ID as proof of citizenship.

The U.S. government recommends traveling with a valid U.S. passport to avoid delays or misunderstandings while visiting other countries. A lost or stolen passport is also easier to replace when outside of the United States than other evidence of citizenship. 
Canadian Citizens
A valid Canadian passport is required for Canadians intending to visit territories of the United Kingdom. The passport should be valid for at least the expected duration of their stay. Canadians may also be asked to show proofs of sufficient funds and accommodation for the duration of their stay.

These requirements are subject to change at any time. The Canadian government strongly recommends that its citizens have a passport for all travel abroad. It is the traveler's responsibility to check with the country's embassy or its consulates for up-to-date information.


* Caribbean nations included in the Western Hemisphere Travel Initiative are Anguilla, Antigua and Barbuda, Aruba, Bahamas, Bermuda, British Virgin Islands, Cayman Islands, Dominica, Dominican Republic, Grenada, Jamaica (except for business travel), Montserrat, Netherlands Antilles, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, and Turks and Caicos.

Sources
U.S. State Department: http://travel.state.gov/travel/
Canadian Consular Affairs: http://www.voyage.gc.ca/consular_home-en.asp
Cayman Islands tourism: http://www.caymanislands.ky/