Park in carpark on side of Bethells Rd just over stream bridge and just past Tasman View Rd intersection.
Sand dune surface can get hot in summer for bare feet.
The face of the sand dune slopes steeply into the lake and beyond. There is no shallow water for poor swimmers. It is straight into deep water. Fresh water is not as buoyant as seawater - be very careful if you are swimming. Do not let children swim without an adult and its not advised to let poor swimmers to bathe in the lake, no matter how tempting it is on a summers day.
Some people slide and roll down the highest steep sand face into the stream bed below. Be careful this can be dangerous and has resulted in permanent paralysis.
15-20 min walk along sandy track beside stream and then up and over active sand dune to the edge of Lake Wainamu.