Where can i find out the locations of Scotiabank branches in Guatemala?

I'm heading out to Guatemala on Friday for a week, and instead of taking cash out there, my bank (Barclays UK) told me today that the cheapest way for me to withdraw money out there is to find a Scotiabank branch or ATM as they have affiliations with Barclays, meaning I wouldn't be charged any handling fees for the exchange of currency etc. However, on the Scotiabank website it only seems to let me find locations of branches and ATM's in Canada? Any help much appreciated.