Maldives

Region: South Asia

Requirements

Passport Validity: 6 months
Stay and Departure: Must have a valid ticket to continue the journey out of Maldives,enough funds to cover the stay in Maldives, (US$100 + $50 dollars per day) or a confirmation of reservation in a Tourist Resort or a Hotel
Transit: No information found.
Dual Nationality: U.S. policy on dual nationality can be found here.

Additional Notes

A Tourist visa may be renewed by applying before the expiration of the visa to Immigration, who will reassess traveller's finances. Extension is only granted to a duration not exceeding a total of 90 days.
Maldives Immigration warns: 'Caution: Full thirty day visa is not a right of the passenger to claim, but lies at the discretion of the Immigration to issue not more than thirty days and any period less than thirty days.'

Sources:

Maldives Immigration