Adelle and Ryan MacDonald's destination wedding was not for the faint of heart — or the out of shape.

The happy couple, plus 35 friends and relatives, hiked 4.5 hours to reach the summit of Gros Morne Mountain 800 metres above sea level for Saturday's ceremony.

Adelle MacDonald said she and her new husband were looking for some place special to marry. She suggested Gros Morne, which the MacDonalds have hiked before. 

However, their guests reacted differently.

"Lots agreed that, yes, it would be an absolutely beautiful wedding, but [there] was also a bit of torture involved," she said. "They were really excited and knew it would be absolutely beautiful, but most started deciding, 'Okay, I need to prepare and train for this.'"

It was hot — 27 degrees — but there was a wind to provide some air conditioning.

The guests brought their own food and water. MacDonald's brother carried her white wedding dress, and friends helped with hair and make-up.

"It was perfect. It was all that I ever could want. It was beautiful, it was completely meaningful and heartfelt. It's funny, in the middle of the ceremony … I turned around and looked at the view and said, 'Yep, this is a good choice.' And then I turned around again and finished getting married," she said.

MacDonald, who lives in Calgary, said the hike down was a little harder.

But the couple and their guests still had the energy for a reception that night.

Gros Morne Mountain is the second highest peak on the island of Newfoundland.