15 June 2012 Last updated at 23:01 ET

Nik Wallenda completes Niagara Falls tightrope walk

Nik Wallenda successfully tightrope walks across the Niagara Falls

A man from a celebrated family of professional daredevils has completed a tightrope walk across Niagara Falls in a televised stunt.

Nik Wallenda braved wind and heavy spray to make the 1,800ft (550m) walk from the US to Canada on a 2-inch (51mm) wire.

Thousands watched from Goat Island, where he began the crossing, suspended 150 feet (46 metres) above the falls.

It is the first such feat over Niagara Falls in over a century.

Mr Wallenda is the seventh generation of the famed Flying Wallendas.

The family has performed for more than 200 years, including the signature act that gave the group their name, where two pairs of performers walk the wire, each supporting another aerialist on a pole.

Those two aerialists, in turn, carry a pole upon which the seventh member of the troupe balances in a chair.

The family has suffered two deaths from falls while performing, including Mr Wallenda's great-grandfather in 1978.

Passport required

Mr Wallenda wore a safety harness attaching him to the wire, a precaution insisted on by ABC, the US broadcaster which sponsored the live broadcast of his walk.

Prior to the walk, he said he had not performed with a harness before, but that it would not take away from the event.

After he arrived, Mr Wallenda was asked to produce his US passport to officially enter Canada.

The 33-year-old had estimated the total cost of the walk would be around $1.3m (£830,000), including creating and installing the steel wire, as well as permits and security on both sides of the border.

Legal liability had prevented ABC from funding all of Mr Walenda's costs and materials, so he had taken to online site IndieGoGo to raise further funds.

As of Friday afternoon, he was 45% of the way towards his goal of $50,000.