You may need a visa for Saint Kitts and Nevis if you have a Marshallese passport
Visa options for Saint Kitts and Nevis (2)
Electronic visitor visa
Travellers need a visa to visit Saint Kitts and Nevis for Business or Tourism. An eVisa is the fastest and easiest way of obtaining a visa for Saint Kitts and Nevis because travellers can submit their application and supporting documents online. Once the application is approved, travellers receive their eVisa confirmation electronically. A valid visa is required to board the flight. If the visa is expired or doesn’t match the traveller’s passport information, travellers will not be able to board their flight.
This is not offered by sherpa°.
Apply on the government site.
You don't need a visa. You can travel to your destination for a limited stay. Be sure to check other entry requirements and how long you can stay for.