So I've watched This is the Sea 4 with my friends over at Kayak Yak and I generally enjoyed it. The second disc of expeditions was definitely the highlight for me. Some jaw dropping visuals and a great capture of the emotion and interaction between friends over a long and daring adventure. I was turned on to a quick behind the scenes interview of Justine and Barry by Simon Willis' update that it's his most watched podcast so far. Listen in to his podcast Here and feel free to buy This is the Sea 4 here.