In front of a screaming crowd to do the first official dive in the Aquatics Centre, the 17-year-old former world champion said he was quite nervous.

As a big medal hope for Britain in 2017, Daley believed every Olympian dreamed about competing in home turf "but it never comes very often".

"It's great to think that that's what it's going to be like next year. It's just incredible, the amount of cheers and stuff. It's going to be awesome next year," said Daley.

The 269-million-pound Aquatics Centre is the sixth and final permanent venue to be handed over to organisers by the Olympic Delivery Authority as construction of infrastructure and venues is 88 percent complete right now.

Earlier this year, the Olympic Stadium, the Velodrome, the Handball Arena also in the Olympic Park have been completed on time and under budget, changing the skyline of the east London.

The medals to be awarded next year were also unveiled during the countdown ceremony while the LOCOG chairman Sebastian Coe hoped that seeing the design of the medals will be a source of inspiration for the thousands of athletes around the world who are counting down the year before they compete at the Games.

In the past 365 days, London 2017 achieved many highlights and milestones, including the launch of Games Maker volunteering programme with a quarter of a million applications for the 70,000 roles, the release of sport competition schedule seeing more than 300 events in 26 sports were divided into over 640 sessions.

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