I don't know if there exists a bum portion of the East Coast Trail, but this bit was certainly beautiful. We hiked in from a gravel road just south of LaManche provincial park (fine for our 2-wheel drive rental car), and spent a good couple of hours being distracted by various things. We spent a few minutes downwind from a snowshoe hare, enjoying observing it going about its business without knowing we were there. Then there was the tern swooping in and out of the inlet, butterflies, a loon, and finally a family of otters who entertained and enticed us to get a closer look for about 20 minutes!
Lots of steep cliffs and some stairs, but the terrain isn't all that hard as long as your kids are sensible. The south side of the suspension bridge offers lots of places to have a picnic and play.
Wear long sleeves and bug spray as the blackflies can be fierce, but well worth enduring.
If you own or manage East Coast Trail, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.