Vaccination and health: not required.

No visa required.

Stay of up to 30 calendar days, extendable up to a total of ninety (90) calendar days.

Passport or travel document valid for up to 90 calendar days.

Documents to be presented:

1. Valid passport or travel document. Only machine-readable passports or travel documents will be accepted, in accordance with the guidelines established by the International Civil Aviation Organization (ICAO), and with the validity determined by these guidelines.

2. Visa, when required in accordance with these guidelines.

3. Economic solvency, with a minimum of USD$100.00 (one hundred US dollars) per month or fraction of a month of legal stay in the country.

4. Ticket, ticket or return ticket to the country of origin or continuation of the trip, or the navigation plan showing the port of destination.

5. No impediment to entry into the national territory.

Email: embcr-gt@rree.go.cr.

More details here.

More information, here.