Prince Andrew says never again after rappelling down 'The Shard'

LONDON -- Prince Andrew has rappelled 239 metres down the side of Europe's tallest building to raise money for charity.

The 52-year-old's stunt began on London skyscraper The Shard's 87th floor and finished on the 20th, and took him 30 minutes.

Following the descent Monday morning, the prince said: "I will never do it again."

Andrew was part of a group of about 40 participants raising funds for the Outward Bound Trust and the Royal Marines Charitable Trust Fund.

The prince -- chairman of the trustees of the Outward Bound Trust -- raised 290,000 pounds ($460,000).

Following the stunt, Andrew told reporters the "difficult bit was actually stepping out over the edge," but said his training with the Royal Marines had given him the confidence.

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  A view of the iconic Tower Bridge, right, over the river Thames, and The Shard, left, a newly-constructed high-rise building that is western Europe’s tallest in London on Wednesday, July 4, 2012. (AP / Lefteris Pitarakis)