island bay

1. any bay with an island in it
2. a particular bay on wellington's south coast with an island in it
2a. it is a well-known fact that almost nobody knows that this island is called Tapu Te Ranga
3. behind this bay is a suburb, marine laboratory and various other commerical ventures as are needed to make sure people do not starve.
4. you better not be waiting for anything more interesting. there isn't all that much interesting about Island Bay

oriental bay

1. picture-postcard suburb around the corner from the central city with views over the harbour, as the word "bay" would imply
2. a bunch of apartments clinging for dear life to a hillside that every now and then slides down the hill.
3. a non-naturally occuring beach, thanks to a decision taken to import roughly nine billion dollars worth of sand for the citizenry's pleasure