The Ranui Cubs were among those at Caroline Bay to mark Sea Week on Saturday.
About 50 took part in the event, which included planting native species in sand dunes, Environment Canterbury youth engagement adviser Deborah Eddington said.
Timaru District Council parks officer Gary Foster talked about the council's bay restoration work and efforts to increase biodiversity for inhabitants such as lizards and penguins.
Lizard researcher Hermann Frank told those gathered about the lizards that make the beach home, ECan's Gerrit Roux covered plant and animal pests such as ferrets, rats and cats and Zero Waste adviser Briony Woodnorth spoke on marine debris.
The Timaru Yacht Club was also represented at the event, one of several Sea Week events held in Canterbury last week.
- The Timaru Herald