Does this place have beach have sand to play ? Kids can playaround in water ? Is this safe to children walk and run ?

The Port itself does not have a beach, but there is a nice beach just south of the Port where kids can play around in the water. The Port has a boardwalk where children can walk and run, but it is near parking lots. If you want to let them run freely, visit Marina Beach park, just south of the Port.

Yup

Yes it does

Yes, has 2 sandy beaches. One for families, and the other for 'off leash dogs' with a big dog park next to it. The marina is fairly large, so bring some walking shoes.