This can be the kind of problem that will most likely get no excellent answer, though the Cruise itinerary TomMN posted is an effective example of the issue. It starts within the US, ends in britain, visits Iceland (Schengen) for 4 days. Nevertheless, according to how Princess and Iceland tackle imm

a faculty pupil or pupil travelling in connection with your education or scientific tests, or an accompanying teacher; You may’t either apply for the home allow within a Schengen region that you simply entered using a Schengen visa. The Netherlands Doing the job holiday break visas 

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