MisterB266,
I've printed your information and will take it with me. Thank you. You mentioned prices in pesos a few times. Should we exchange our USD to pesos for the trip or will we be fine paying all the fares (taxi, bus) in USD?

I've tried a couple of times to spend US$ in Mexico and nobody wanted it, so have used only MX$ since. You might already know that in Mexico and on Mexican websites, the "$" symbol is used to represent pesos.

There is a currency exchange in Cancun airport. You'll see it just after coming out of customs.

There are several money changers on 5th Ave in Playa, and a few money changers on the main street in Chetumal.

US$ are accepted in Belize; change might be given in BZ$.

It's not easy for Mexicans in the interior to change USD to pesos which is one reason they don't like to take them. At the moment, the official exchange rate is MXN$12.67 for USD$1.

If you do pay someone in USD, how are you going to determine the exchange rate? It changes minute to minute and you'll get change in pesos, anyway. Also it's easy to have a bit more of your USD shaved off the exchange than might be the case if you got pesos from a bank or a casa de cambio and paid for all your transactions that way in the first place.

Any suggestions on a hotel in Chetumal? I saw a post that said the Muelle Fiscal pier is very close to the Sam's Club and that there is a hotel across from Sam's Club. Can't find the name of the hotel online. Thanks

The hotel's name is Noor.