(CNN)-- A floating city off the coast of San Francisco may sound like science fiction, but it could be reality in the not-too-distant future. The Seasteading Institute already has drawn up plans ...

“This year the challenge was above the current, where we've asked the students to build a city 100 years into the future as if it were floating on water.” From schools, to scouts, and even ...

The project promises to be a harmonious blend of modern living and environmental conservation. But the floating city’s costs are substantial, with estimates running into several million dollars.