Give Lakes a Little Love: World Lake Day Makes a Splash
From a pioneering meeting on the shores of Lake Biwa to a worldwide celebration of the blue jewels of our planet
On August 27, the world celebrates World Lake Day, a new United Nations observance with a remarkably long history.
The date commemorates the first World Lake Conference, held from August 27 to 31, 1984 in Otsu City, Shiga Prefecture, Japan, on the shores of Lake Biwa. The conference, known as LECS ’84, gathered more than 2,400 participants from 29 countries. They came together to explore how people and lakes could live in greater harmony. The meeting’s theme was aptly titled Toward a more harmonious inter-relationship between man and lakes, according to the International Lake Environment Committee (ILEC).
What began as a pioneering international conference eventually inspired a global day dedicated to the protection of lakes.
From Japan to the United Nations
The World Lake Conference continued to bring scientists, governments, communities, and other stakeholders together around the world. ILEC’s history of the World Lake Conference reports that the event has been held regularly in different regions since that first gathering in 1984, creating an international forum for sharing knowledge and approaches to sustainable lake management.
Then came the big splash.
In December 2024, the United Nations General Assembly officially designated August 27 as World Lake Day, following an initiative led by Indonesia. The date was deliberately chosen to honor the first World Lake Conference in 1984. The UN resolution adopting the annual celebration invites governments, international organizations, civil society, the private sector, and academia to mark the day through activities that raise awareness of the importance of lakes and promote their conservation, restoration, and sustainable management.
The first World Lake Day took place on August 27, 2025, making 2026 only its second annual observance. This year’s theme is My Lake, My Story: Creating environmental, social, and economic value for lakes.
Why lakes deserve our attention
Lakes are much more than beautiful places for a swim, a picnic, or a spectacular sunset.
They are vital freshwater ecosystems. They are essential reserves, holding roughly 90% of the planet’s unfrozen surface freshwater. Lakes support biodiversity, provide water for people and agriculture, help manage floods and droughts, and sustain livelihoods. They also have enormous cultural, recreational, and economic importance.
But lakes are under growing pressure from pollution, urbanization, industrialization, excessive water use, and climate change. As ILEC emphasizes, lakes are facing critical threats, making international cooperation and sustainable management increasingly urgent.
Protecting lakes is therefore about much more than protecting pretty scenery. Healthy lakes mean healthier ecosystems, more resilient communities, and a more secure freshwater future.
How to make a splash on World Lake Day
World Lake Day is intended to be both celebratory and practical. The UN encourages countries, organizations, and communities to mark the occasion with activities focused on education and awareness, conservation, restoration, and sustainable lake management.
That can mean a lake clean-up, a school project, a public lecture, a scientific conference, an exhibition, a community event, or simply learning more about the lake closest to you.
Last year on this day, ILEC also encouraged people around the world to share their favorite lake photographs and messages of support using #WorldLakeDay. This turned social media into another way of celebrating these precious ecosystems. This year, on platforms such as Instagram, you can use #WorldLakeDay to highlight lake conservation efforts and contribute your own experiences and stories.
So today, take a moment to celebrate a lake. Visit one if you can. Learn its story. Share a photograph. And perhaps pick up a piece of litter while you’re there.
Because every lake is more than a body of water. It is part of the life-support system of our planet. And that’s something worth making a splash about.
