But now he's left the ship and is staying in a hotel in Kuwait.
Here he describes what it feels like to be back on dry land.
Diary entry 28:
"I am off the ship! In a hotel room with a large bed and doors that you don't have to step over to get through. And I have windows and can speak to people on the phone whenever I like. At last!
My bosses decided it was time to leave when we realised the ship really had finished its main task.
It was nice while it lasted, but it's so good to be on dry land again.
Some of the other media on board left in the early morning. I had to wait for my lift until five in the evening.
So I spent the day packing and saying goodbye to people.
Then, all my bags ready, I climbed aboard the helicopter. Just me and the four crew members. The world's most expensive taxi ride?
But a great one. We took off from the flight deck, and swung away from my home for the last four weeks. Over the waves.
I chatted to one of the crew members. Stan Hall, whose daughters Amy and Sophie are Newsround fans. They live in Cornwall and haven't seen their dad for ages now.
Stan asked if I wanted to see where we were flying, so I stood up and watched through the front windscreen.
And there, land! Kuwait. It came out of the mist, and we flew in low, over the city, and onwards to the airport.