The Aquarium will be open Saturday, October 21, 2017, during the Baltimore Running Festival. Learn more about detours and road closures here.

Turn off. Take action.

Published March 25, 2010

This Saturday, the National Aquarium will join millions of people and organizations around the world in supporting Earth Hour. Sponsored by World Wildlife Fund (WWF), Earth Hour asks individuals, businesses, government leaders and others to turn out all non-essential lighting for one hour as a movement to show support for our planet and a sustainable future.

In 2009, the National Aquarium joined nearly one billion people from 4,100 cities in 87 countries by turning out our lights. Our Baltimore building stood in the dark alongside hundreds of international cities and iconic landmarks ranging from the Las Vegas Strip to St. Peter’s Basilica in Vatican City to the Great Pyramids of Giza. Last year’s images are a powerful statement: 

On Saturday, March 27, between 8:30 p.m. and 9:30 p.m. Earth Hour will once again cascade across the globe. The National Aquarium will once again “go dark” – and this year we encourage you to participate with us.  Together, we can show the worldwide community that the National Aquarium and all of its supporters are committed to making behavioral changes for the environment.

Previous Post

Featured Stories

sawfish Anatomy of a Sawfish


We’re celebrating the inaugural International Sawfish Day by taking a look at these unique creatures!

Read the full story

floating-wetland-planting Harbor Happenings: New Floating Wetland 

We installed a new floating wetland prototype within our Waterfront Campus last week!

Read the full story

Related Stories

Q&A with Dr. Richard Alley

Published October 20, 2017

Celebrate Hagfish Day

Published October 18, 2017