North Stradbroke Island and smaller nearby islands , most notably those of Southern Moreton Bay , comprise the eastern portion of the Redlands .
The latter is the City 's namesake , due to the colour of its fertile soil .
North Stradbroke Island and smaller nearby islands , most notably those of Southern Moreton Bay , comprise the eastern portion of the City .
The latter is the City 's namesake , due to the colour of its fertile soil .