How to insure a RTW trip that includes a cruise?

[happy cruzer]

Hope someone can share what they have done in the past or what they think is a good plan.

 

Looking at booking a Oneworld RTW ticket.  It will start and end in Oslo.  We will pay seperately for transport to and from the US (may self insure this part).

 

So one trip from the US will be in the summer for about 3 weeks in Europe, there will be two US trips in summer, then next spring a trip of about 1 month that will include a two week cruise.

 

Pretty sure that we want to use GeoBlue annual policy for medical part.

 

Any ideas for travel insurance.  Typically we are fine with our Credit Cards coverage, not perfect but good enough.  What I don't understand is how to cover the RTW ticket, it is a one time charge but there could be travel delays on multipule segments of the ticket.  Is there a way to cover these delays?

 

Also the cruise will be paid by a credit card that may not be the one used to buy the RTW ticket.  Does that normally cause an issue if somehow the flight delay causes the cruise to be missed?

 

Any experience or ideas?  Thank you.