Each year, the CN Tower hosts only two annual fundraising stair climbs, one in the spring for the WWF–Canada supporting the fight against climate change and one in the fall for the United Way of Greater Toronto in support of its many community-based agencies. Combined, these two events attract over 20,000 participants and raise over $2.5 million each year.
Note: The CN Tower is committed to these two stair climb events only at this time and will not consider any other requests.