Canvey Island the 30 hectares known as West Canvey marshes, acquired by the RSPB in 2007, and the Canvey Wick nature reserve. Canvey Wick is a designated Site of Special Scientific Interest (SSSI) at the site of the abandoned and incomplete oil refinery. The foundations of the 100 hectare (0.4 sq mile) site were prepared in the 1970s by laying thousands of tonnes of silt dredged from the Thames; the abandoned and undisturbed area has flourished as a haven for around 1,300 species of wildlife, many of which are endangered or were thought to be extinct; including the shrill carder bee, the
Sheppey Light Railway remote Hundred of Hoo branch on the other side of the Medway estuary. A further six were acquired in 1906 for use on other lightly used services. The railmotors remained in use until the outbreak of World War I. The steam engine components were scrapped but the carriage portions were united in pairs, coupled over a shared bogie, and in this format they remained in use on Sheppey, hauled by normal steam engines, until the line's closure. As the steam railmotors did not have enough power to pull goods wagons, the SE&CR sought out a small engine for the daily