Thanks @Svetlana142 , that helps with understanding your requirements and your concerns.
A short walk to the beach when ever one chooses would be preferable - however the closer to the beach the prices go up.
Ask the Host, and any potential Host if there are buses that are within a short walking distance from where they are to the beach as they are an economical way to travel with a family.
Big roads & buses driving like crazy is worldwide challenge for us all.
Re bikes, perhaps that's a project your family could work on with locals whilst you are there!
Just not Lime and other scooters as they are a nightmare lying on footpaths.
Keep us posted how things progress.
Central To All Home & Location
Remuera, Auckland, New Zealand