While The Beach had visitors flopping into a ball pit “ocean” last year, the National Building Museum’s new summer exhibition will have them experiencing the world underneath the water.

The Great Hall will be transformed into a “glacial ice field” and visitors will be able to wander among “icebergs” towering up to 56 feet, the museum announced today. Designed by James Corner Field Operations, the space will be divided by a “water line” at 20 feet, allowing for views from below and above the “ocean surface.”

As with previous summer blockbusters (remember the giant maze or the indoor mini golf?), ICEBERGS is meant to immerse visitors and get them thinking about architecture, geometry, and construction.

“ICEBERGS symbolizes an extreme counterpoint to the sweltering heat of the Washington, D.C. summer,” Chase Rynd, executive director of the National Building Museum, said in a statement. “We hope that James Corner Field Operations’ striking design will provoke both serious public conversation about the complex relationship between design and landscape, while also eliciting a sense of wonder and play among visitors of all ages.”

The re-usable construction materials will include scaffolding and polycarbonate paneling, which is often used in building greenhouses. Lest you think they won’t be able to find a use for them, a new exhibit is slated to open at Dupont Underground that incorporates the 650,000 translucent balls from The Beach. Re-ball! will open to the public on April 30 and run through June 1.

ICEBERGS will open the following month and stay up through the summer. Visitors will be able to get to the top of the tallest “iceberg” to check out the view, eat shaved-ice snacks, and explore an undersea bridge, caves, and grottos.

“The installation creates an ambient field of texture, movement, and interaction, as in an unfolding landscape of multiples, distinct from a static, single object,” said James Corner, founder and director of the urban design and landscape architecture firm. “Such a world is both beautiful and ominous given our current epoch of climate change, ice-melt, and rising seas.”

As with The Beach, a ticket will run $10 for adult members ($5 for youth members/students/seniors) and $16 for adult non-members ($13 for youth members/students/seniors) and include admission to the museum’s other exhibitions. ICEBERGS will be open to the public from July 2-September 5.