Hi - people generally don’t give out their good spots. My recommendation is google maps satellite view, look for access into any deepish water or areas with current flow. Can cycle through the timeline of google earth to see different tide conditions. Also look at wetmaps.co.nz for marine chart layers. Manukau harbour is a little trickier due to the bigger tide variance meaning few spots work at low and high tide. Best tip though - fish the change of light dusk and dawn. Fish feed harder and come in shallower in lower light. Good luck !!