The Hutt Lagoon comprises most of the Hutt Lagoon System such as Utcha Swamp .
The Hutt Lagoon System is a DIWA - listed wetland system that also takes in a number of adjacent small lakes .
The Hutt Lagoon comprises most of the Hutt Lagoon System , a DIWA - listed wetland system that also takes in a number of adjacent small lakes , such as Utcha Swamp .