The HMS Ocean boasts up to 18 spaces for sea king helicopters and can carry 1200 people and weighs more than 20,000 tonnes.
The Royal Navy's biggest warship HMS Ocean opened its flight deck and hangers to the public during a four day visit to the River Wear.
The crew of Sunderland's adopted warship HMS Ocean paraded through the city centre. It's part of a four day visit to the city.
HMS Ocean, the Royal Navy's largest warship, is spending four days in her adopted city.