Studies on entanglement islands and Page curves in braneworld models realising systems of black holes in 4d gravity coupled to an external bath and their string theory uplifts, are recent developments with profound physical significance. In this contribution, we focus on a special family of the above uplifts, where the IIB solution allows for a graviton with a small mass. In this context, we focus on the emergence of the islands and their behaviour on special limits of the geometry and we comment on the significance of the graviton mass.