The local currency on St. Vincent and the Grenadines (and Grenada, St. Lucia) is the East Caribbean Dollar ($EC). It has a fixed exchange rate of EC$2.70 = 1 US Dollar.
For your convenience, we accept all major credit cards (Visa, MasterCard, American Express, JCB, Discover, and Diners Club) and PayPal. To get cash, there is one ATM on Union Island, none on Mayreau. We strongly advise you get cash at the ATM on your way from the Union Airport to the dock when you arrive (the driver will know to stop there). It's also a good idea to bring either USD, CAD, or Euros as a backup.
We automatically add a 10% gratuity to all restaurant and bar bills which is distributed to our local staff. We also add a mandatory 10% hotel room tax to your room bill.