Generally, a ferry journey is not classified as a cruise. Most policies include specific definitions of what constitutes a cruise. A common definition might describe it as a "pleasure voyage lasting over 72 hours, involving travel on seas or oceans, and including stops at multiple ports." However, it’s always important to review the specific wording in your chosen policy to ensure you fully understand what is and isn’t covered.
If the definition in your policy of interest indicates that cruise cover is necessary for a ferry trip, you can easily adjust your quote to include cruise cover. This will allow you to compare policies and select the one that best suits your needs. I’d also recommend checking for any other features or exclusions that might be relevant to your travel plans, just to be completely confident your trip is protected.