The Belize Bank on Main Street will change Euros and US Dollars, but not Mexican Pesos. Scotia Bank was similar. To change Mexican Pesos into Belizean Dollars, go to the store called Baba's, that faces on the main square near the clock tower. Inside Baba's there is a teller window where Pesos can be changed to Belizean dollars at a reasonable rate. There is no indication on the outside of the store that this service is available.
