Westmere Lake, also known as Roto Mokoia, is a small coastal lake at 98 Rapanui Road in Westmere, Whanganui, with a Google rating of 4.5 from 74 reviews.
The website describes a lake of about eight hectares with a maximum depth of six metres, surrounded by about twenty hectares of bush tracks and farmland. It warns that the lake has high nutrient levels and E. coli, and is not overly suitable for recreation, so visitors should check current water quality before swimming or letting children play in the water. The website also notes that the lake is cared for by a team focused on lake health.
Its Rapanui Road setting on the coast north of Whanganui makes it a quiet place to walk the bush tracks, with the water best enjoyed from the shore.