Advances in the field of sensor networking, coupled with the increased level of ubiquity of wireless Internet access has given rise to the ability to support Mobile Sensor Network scenarios. The name Mobile Sensor Network refers to a group of sensor nodes that move together, collectively sensing the environment around them as their location changes. In this paper we present our sensor-to-sink all IPv6 based Mobile Sensor Networking solution that facilitates the delivery of the sensor nodes' data to any data sink connected to the Internet by forming a dynamic routing infrastructure between clusters of these networks. Our approach has the ability to utilise any available Internet connection for transmitting this data to any globally reachable location without requiring any specific alteration to the infrastructure of the access networks, whilst also ensuring that every node in a Mobile Sensor Network remains persistently reachable whenever an external connection to the Internet is available. We provide results from our experimental testbed that highlight the overall capabilities of our approach and its suitability for supporting Mobile Sensor Networking scenarios.