This is in line with what herman says...cause we do the same thing, use an ATM. Our card usually converts the currencys at whatever the current rate is and we also have never noticed a fee for this.
My wife travels alot on business to Sweden,and France; I know its not Bonaire. Her credit card will convert any purchases with foriegn currency to US dollars at the current exchange rate; thus insuring you are getting a fair rate and she says it can be very different depending on the circumstance. She never has to buy currency and sell back what she doesnt use. She carrys some money, small amounts from little purchases but uses her card for bigger purchases such as liquor, hotels, dinners. She has even used her CC for taxis. I never see anything unusual on her credit card sucha s fees or over charges. However, I never bother to figure out the exchange rate either since all of the expenses are reimbursed. This seems like a convenient feature since it eliminates the whole currency problem. We've even used our CC on cruises when we hit ports for fear of unfair exchange rates when all we have is US $; never seems necessary to exchange currency for a few hours on an island.
Sooo....can't we use a cedit card for purchases such as gifts, dinners, drinks etc in Bonaire?