The President was first taken around the venue to have an appreciation of the state of facilities, including lodges that are in a dilapidated state and the thriving water hyacinth which has caused headaches to water authorities in recent years.
According to biologists the weed thrives in heavily polluted water from nitrates.
After observing some boats picking trash from the water body, the President was shown heaps of rubbish picked from the lake which was heaped on the shore.
He went on to shovel it into a refuse truck.
President Mnangagwa went on to plant a muchechete tree.
Vice President Constantino Chiwenga planted a fig tree muonde or mukuyu, Vice President Kembo Mohadi a mutsamvi tree, while Environment, Tourism and Hospitality Industry Minister Prisca Mupfumira planted a mushumha tree.
Defence and War Veterans Minister Oppah Muchinguri Kashiri also planted a tree.
After tree planting, the President proceeded to view exhibition stands mounted by different stakeholders in Ministry of Environment, Tourism and Hospitality Industry.
In her address, Minister Mupfumira said the day is expected to raise awareness on biodiversity loss challenges that include endangering of species, deforestation, desertification, climate change, pollution and other issues.
She bemoaned the sorry state of Lack Chivero which has green water.
She said the clean-up campaign is to create an environment-aware Zimbabwe.
Chief Executive of Waste Management Mr Weston Macheka paid tribute to the president for creating national clean up day saying every human on earth is a passerby and should leave the planet cleaner than we found it.
Green ambassador Dereck Mpofu was at hand to serenade the guests as the country took a couple of hours to think the environment.