To enter the country of Nicaragua you need a passport valid for
at least six months. You do not need to obtain a visa prior to
your departure. You will be able to buy a tourist visa after your
arrival at the airport for five US Dollars valid for ninety days
for American citizens and thirty days for nationals of other countries.
This visa is renewable twice in the country. If you plan to stay
in the country as a resident we will be happy to inform you about
other documents you will need.