The beach "On Pical" extends north of the old town of Porec. Predominantly rocky with a bigger surface area covered with pebbles, so it is suitable for children too.
The security code can usually be found on the signature strip on the back of most cards. In most cases the security code is the last 3 digits printed on this signature strip as shown below.
With American Express cards, the security code is the four digits printed just above the card number.