"This well-graded track rises 300 m in altitude to the day shelter at Lake Waikareiti. The forest is predominantly red and silver beech with mighty rimu trees emerging above the canopy.
Beyond the day shelter a tramping track runs to Sandy Bay Hut at the northern end of the lake (a further 3 hours from the day shelter). The hut (bookings required) lies idyllically on the shores of a shallow bay which features brilliant white sand.
The Ruapani Circuit Track can be accessed from this track about half an hour beyond the Waikareiti day shelter".
https://www.doc.govt.nz/parks-and-recreation/places-to-go/east-coast/places/te-urewera/things-to-do/tracks/lake-waikareiti-walk/