For the rest with children you can offer several resorts, it all depends on the passions and temperament of parents and children. Mamaia is located near Constantia and near the water park, an amusement park, but the resort itself is not very green. The resort of Neptune-Olympus is more green, with park territories, two natural lakes, but a quieter one. Everywhere there is water entertainment, a good coastal sand zone, restaurants and cafes.