Where should I setup a bank account in Grecia?

"It is important to do some research before retiring in Grecia. Expats should be aware of the cost of living in Grecia, which may be higher than what they are used to. Expats should also research the cultural norms to ensure they respect and understand the local customs. Access to healthcare and insurance, as well as banking systems should also be researched. Additionally, the climate and housing options for expats should be looked into to ensure the best possible experience when retiring in Grecia," mentioned another expat when asked about moving to Grecia, Costa Rica.