Bottled water is widely available. Currency can be changed at banks and money exchangers. All major credit cards are accepted. Many of the banks of the larger islands stay open longer especially during the tourist season. Nov - Mar is when most rain falls.
Winters are mild in the South but much cooler in the North.
All postcards and letters for overseas will be sent by airmail. Poste Restante is available at the post office. Regular trains operate between Athens and the main cities. Good road network. Run on a shared basis.