Frank's Beach is listed as a park in Belmont, North Shore City, Auckland, with a Google rating of 4.7.
A good beachside park gives you somewhere to sit, walk and enjoy the water without fuss: clear access, some shade, and paths that are easy to follow. If you are choosing a spot for an outing, check for seating, toilets and parking before you go, and look at the tide, as a small beach can look very different at high and low water. Regulars go early on summer weekends, when popular coastal spots fill up, and bring sun protection, water and a layer, since breezes off the harbour can turn cool even on a bright day. Take care on rocks and slippery edges, and keep a close eye on children near the water. Auckland parks often have set rules for dogs, so read the signs at the entrance, and take your rubbish home.
For people in Belmont and across the North Shore, Frank's Beach is a very well-rated local place by the water.