This is dependent on your chosen cruise holiday itinerary and the ports of call included on the cruise. If there is a mandatory requirement, you will be advised at time you make your cruise booking and/or it will be detailed on your confirmation invoice. However, due to ever-changing health regulations, we suggest that you contact your local GP approximately 12 weeks prior to departure for the most up-to-date information.General travel advice is also available at www.gov.uk/browse/abroad & https://www.gov.uk/foreign-travel-advice In some countries, general standards of hygiene, care and safety may differ from those in the UK, so when going ashore common sense is the watchword, especially when choosing drinks or sampling local cuisine.