requirement for schengen visa

[immihelp]

I am a British citizen, living in the USA. So I have a British passport and a green
card. My husband is an American citizen. This Summer we will be on a cruise which leaves from Southampton England and travels to Portugal, Spain, Greece, Turkey, Italy and Gibraltar Do either of us require a Schengen visa?

Thanks

[immihelp]

I don't think you require Schengen visa.