Also here not the best of visibility and not an aweful lot to see either. Done it, don't really need to go back here. Again very cold upwellings from the deep with thermal layers, amazing the wall of cold ... Also here not the best of visibility and not an aweful lot to see either. Done it, don't really need to go back here. Again very cold upwellings from the deep with thermal layers, amazing the wall of cold water.