Does a cruise eSIM work in port?
Maritime service and land coverage are different; check each product’s included networks.
Separate sea days from port days
Do not assume a maritime allowance includes terrestrial networks. An onboard maritime network may be unavailable near shore or in port.
Make a connection plan for each stop
Check the countries included in any land plan, and confirm which SIM is selected for data when you go ashore. Ship Wi-Fi is another separate service with its own terms.