Greece is a country in southeastern Europe with thousands of islands throughout the Aegean and Ionian seas.
Greece is definitely not cheap, especially not Athens. Clubs charge around 20 EUR entrance fees.
Just about everyone agrees that the best time to visit is Greece is spring and early summer (mid-Apr to mid-June) or autumn (Sept to mid-Oct). This way, you'll avoid the summer high season, with its inflated prices, hordes of tourists and high temperatures
euros
It's advised to take cash from the UK (pounds or euros) so you don't run out. Take a combination of travel money options to Greece. A combination of cash, credit, debit or travel cards is the best approach.
In most cases, you have unlimited use of WiFi for free. Depending on where you are, you may be able to find WiFi on local public transportation. In major cities, buses and trains are usually equipped with it. You will likely need to agree to the terms and conditions before using WiFi on public transportation.