|It's a bit like threading a needle when they bring one of these into the harbour.|
The harbour entrance is quite narrow and it's quite a squeeze. In this picture you can see the workboat Sea Lion having just successfully towed the cages into the harbour this afternoon.
These pontoons are used to support large nets where salmon are farmed commercially and are being brought in so they can be disassembled. They're then going to be shipped-off to Mozambique where they'lll be used by a fledgling fish-farming project.