Quick answer. Not every destination has its own page yet. Use the rule of thumb below, then check the country's official immigration site for your nationality before you travel.
The rule of thumb
In EU countries (for example Cyprus and Malta), EU, EEA and Swiss citizens can work with no permit. Everyone else needs a work permit or visa.
Outside the EU (for example the Seychelles and most of the Caribbean), almost everyone needs a work permit, EU citizens included. A tourist entry is not the right to work.
Does the type of yacht matter?
On a bareboat charter (up to 12 guests who charter the yacht and hire a skipper) the local rules apply. On crewed charter, private yachts and superyachts, crew are often treated as seafarers and the route can differ with the flag and where the yacht is based, so confirm for that yacht. Working ashore follows ordinary work-permit rules.
Official sources for common destinations
Cyprus (EU): Ministry of the Interior (Civil Registry and Migration Department).
Malta (EU): Identita (Single Permit for non-EU nationals).
Seychelles: Gainful Occupation Permit (required for all non-Seychellois).
For anywhere not listed, search the destination government's official immigration or foreign-ministry site, and if you are unsure, ask us.
What we ask of you
Keep your nationality correct in your profile.
If you hold a work permit for the destination, tick the work-permit box.
Tell us early if your right to work is not sorted, so we can help before your dates.
Important
Immigration rules change and vary by nationality. This is general orientation, not legal advice, and Quarterdeck is not an immigration adviser. Confirm your own position with the destination's official source before you travel. We will not place you where you do not hold the right to work. See also: Visas & work permits, overview.