There is an autobus, wifi bus, Metropoline 90, that comes from Tel Aviv (carmelit) to Herzliya, Arena mall, okeanos ba marina neighbourgh.
this autobus is not so frequently (about each 30 mn) but comes directly...
rate per person is less than 10 nis.
see details in http://www.metropoline.com/
to see the list of the apartments we rent in Herzliya marina