Astir Beach in Vouliagmeni has cabanas, umbrellas, beach-chairs, showers, a cafe-bar and an ancient Temple to Apollo. It is the most expensive of the beaches in Attika, 15 euros on weekdays and 25 euros on weekends, per person. Children up to 12 years old pay 8 euros. But it has everything a Greek beachlover needs to get through the day including umbrellas, sunbeds, showers, water-sports, restaurant, shops, beauty salon, newspaper stand, wireless internet and am I forgetting something? Oh heah. The sea. It is open from 8am to 9pm. You can take the E22 from Akadamias (if you want a seat) or Amalias Ave (if you don't mind standing). A taxi will cost you about 10 euros or more.