Cruise ship passengers do not require a visa.
No visa is required from passport holders from European Union, Andorra, Argentina, Australia, Brazil, Canada, Chile, Hong Kong, Iceland, Israel, Japan, Liechtenstein, New Zealand, Norway, San Marino, South Africa, South Korea, Switzerland, Taiwan, United Kingdom, United States, Uruguay and Vatican.
Visas can be obtained from a British embassy.
Falkalnd islands visa rules
Falkland Islands tourist information