Never been to this part of Mexico. Should I bring pesos with me or is there a bank near the resort where I can exchange my money once I get there?
The exchange rate at the front desk was better than in the bank (located in "Elektra Oaxaca Huatulco Tangolunda"). If you are going to the bank, do not forget your passport.
Get an answer from La Isla Huatulco & Beach Club staff and past guests.