Slipper LakeSlipper Lake is a lake at Te Ārai, Rodney in the northern Auckland Region of New Zealand.GeographySlipper Lake is a sand dune lake located approximately northeast of the town of Wellsford. It covers an area of about. The lake is fed by an inlet that drains nearby Spectacle Lake. An unnamed stream flows from Slipper Lake into the Jellicoe Channel. The lake was created when the Te Ārai sand dunes began to build up, preventing water from escaping the area. The dune lakes are primarily fed by rainwater and the surrounding wetlands.BiodiversityThe lake is a part of the Tomarata — Te Ārai Dune Lakes biodiversity focus area.