After final preparations were made at Portsmouth Naval Base, the 65,000-tonne carrier was turned around and sailed past the Round Tower at 3.30pm.
According to Queen's Harbour Master Portsmouth, four other Royal Navy ships – HMS Diamond, HMS Defender, HMS Kent and HMS Queen Elizabeth – will sail tomorrow.
HMS Queen Elizabeth is due to sail at 3.45pm, with the other ships heading out of Portsmouth Harbour in the morning.
This sailing is for the ship’s company to take part in a two-week war games around the UK, before the Carrier Strike Force heads for the far East.
The strike group plans to visit a total of 40 countries in that time.