[Ann Archy]

The Davis Act says you MUST go to a foreign port before you come back to the US.

Your name must be NORMAN!

[1066AD]

Try reading my reply.

I simply said a round trip from a US port.
I made no mention of ports of call.

https://www.royalcaribbean.com/faq/questions/united-states-citizen-travel-documentation

Never heard of Davis Act. The relevant law is here:
https://en.wikipedia.org/wiki/Passenger_Vessel_Services_Act_of_1886

Who is Norman ?