https://www.youtube.com/watch?v=6uGcQhTuXec Lee envisions the TetraPOT as a hybrid between artificial sea defense and natural sea defense, an idea encapsulated in his design slogan: “It is not only a defense, but also an ecosystem. A home for other living [things].” The TetraPOT is an opportunity to restore the world’s mangrove forests, 35% of which has been destroyed.