Lovely hotel. The local marina is to one side, direct access to a very small beach at the back, shop and local restaurant directly across the road. It is a very quiet neighbourhood, though Rafina port is a short 5 min taxi ride away (€6) and Athens 35-45 (<€40).
There are larger beaches close by, if you don’t want to walk hire a scooter (€35 plus €10 insurance for the day). This will also let you travel further afield, I headed out to Schinais beach and the town of Marathon.
Perfect for a very chilled holiday.