08/01/2011 02:02 EDT | Updated 10/01/2011 05:12 EDT

Hearts race, pulses raise as CN Tower's EdgeWalk opens to the public

TORONTO - The CN Tower's latest attraction, which allows daredevils to take a stroll 356 metres up in the air, opened to the public Monday.

EdgeWalk lets thrill-seekers take a hands-free walk along a 1.5-metre-wide ledge around the top of the tower's main pod.

Walkers get suited up in fire engine red jumpsuits and yellow harnesses and venture out in groups of six to eight for a stunning, open-air view of Toronto and Lake Ontario.

They're accompanied by trained guides.

Safety harnesses and industrial-strength cables attach walkers to an overhead rail, allowing them to lean off the edge of the platform and gaze out on the city sprawling below.