King Kong climbed down from his tower in the middle of downtown Calgary, grabbed his beautiful maiden and proposed.

Taking part in the Easter Seals Drop Zone event in Calgary on Thursday, Derek Todd, dressed as the gigantic love-forloned gorilla, rappelled down the 30-storie Sun Life Plaza's west tower in Calgary and proposed to his awaiting, and unaware, girlfriend Shaunna Undseth.

Undseth gasped as Todd, still wearing the gorilla suit, kneeled and popped the question in front of a loud, cheering crowd.

To Todd's relief, she said yes.

"The drop was fine," said Todd moments later.

The proposal, "that was more intimidating," he said.

Todd was one of more than 120 participants who dressed up in costumes and rappelled the 375 ft. from the lip of the top of the tower to the ground below.

Thursday's event was the eighth annual and is a fundraiser for the Easter Seals, which surpassed its fundraising goal before the rappelling even began, said the charity's CEO Susan Boivin.

"We aimed to raise $250,000, which was quite a bit more than last year ... but some time last night we were already in the $252,000s, and we're still building," she said.

Funds raised will go towards helping children, youth and adults with disabilities live and work independantly in the community, said Boivin.

Loading Slideshow...

  • Drop zone

    Derek Todd after rappelling and about to propose to his girlfriend of 10 years Shaunna Undseth.

  • Drop Zone

    Derek Todd after rappelling and about to propose to his girlfriend of 10 years Shaunna Undseth.

  • Drop Zone

    Derek Todd after rappelling and about to propose to his girlfriend of 10 years Shaunna Undseth.

  • Drop zone

    Derek Todd after rappelling and proposing to his girlfriend of 10 years Shaunna Undseth.

  • Drop zone

    Derek Todd after rappelling and proposing to his girlfriend of 10 years Shaunna Undseth. She said yes.

  • Drop zone

    Derek Todd after rappelling and proposing to his girlfriend of 10 years Shaunna Undseth. She said yes.

  • Drop zone

    Derek Todd after rappelling, proposea to his girlfriend of 10 years Shaunna Undseth. She said yes.

  • Drop Zone

    The ground crew warms up.

  • Drop sone

    Derek Todd after rappelling, proposes to his girlfriend of 10 years Shaunna Undseth. She said yes.

  • Drop zone

    The ground crew warms up.

  • Drop zone

    Getting ready for the one big step.

  • Drop zone

    That one big step.

  • Drop zone

    The point of no return..

  • Drop zone

    That one big step.

  • Drop zone

    Getting ready for that one big step.

  • Drop zone

    Taking that big step over the edge.

  • Drop zone

    Going over the edge

  • Drop Zone

    Over the edge.

  • Drop zone

    Over the edge.

  • Drop zone

    That's a lotta rope! At the top.

  • Up top

    From the top and getting ready to go down.

  • Drop zone

    On their way down.

  • Drop zone

    On their way down.

  • Drop Zone

    On their way down.

  • Drop Zone

    A participant stands in front of Sun Life Plaza after rappelling.

  • Drop Zone

    Almost down..

  • Drop zone

    Almost down.

  • Drop zone

    That's a long way to go..

  • Drop zone

    Working at the top.

  • Drop zone

    Crews work at the top.

  • Drop zone

    Crews work at the top of the Sun Life Plaze west tower.

  • Drop zone

    Crew work at the top of the west tower of The Sun Life Plaza.

  • Drop zone

    Crews work on the top of the west tower of Sun Life Plaza, with The Bow on the background.

Loading Slideshow...

  • Mike Morrison

  • Easter Seals

  • Mike Morrison

  • ShawTV Calgary

  • Ryan Lindsay

  • Megan Szanik

Related on HuffPost: