and focus instead on the seaweed — the endless underwater forests of kelp. i think we should check out the cave and have a look if the sharks are there... i've come here with a group of activists who want to draw the world's attention to this extraordinary, but little—known ecosystem. they're calling it the great african sea forest. we hear so much talk about coral and about the great barrier reef, but there are these giant underwater forests, and they are so important, just as important when it comes to climate and climate change. there's a big value in these kelp forest ecosystems. they protect from storm surges because they break the waves, they prevent coastal erosion, they sequester a lot of carbon which is mitigating global climate change.