In April 2015 Glenn, Heather, Roger Hugelshofer, Paul Tozer and Vicente Cajiga made the first (and only) wingsuit crossing of the Grand Canyon from rim to rim.
This jump took nearly a year to plan and organise, permissions again proving the most difficult obstacle.
The team made a number of high altitude practice jumps at Skydance Davis before attempting the crossing on April 9th.
They jumped from Skydance's Cessna Grand Caravan at 28,000ft and flew over 12 kilometres to land on Hualapai Indian land.
60 Minutes, Sony and Australian Geographic were commercial partners.
Our team made the first successful wingsuit crossing of the Grand Canyon in April 2015. You can read the full account on our BLOG page, watch the 60 Minutes story on our VIDEOS page or see our edit of the footage here.
In 1992 Glenn Singleman and Nic Feteris climbed and made a high altitude BASEjump from the Great Trango Tower in Pakistan. They set a new world record and pioneered the new sport of 'BASEClimbing' or as it's sometimes called, 'para-alpinism'.
The documentary film Glenn made - BASEClimb - went on to win 21 International Awards and earn a place in National Geographic's greatest adventure documentaries of all times.