We've been to Troll Falls a few time in winter and summer. And we've hiked up behind the first set to see the falls behind. But yesterday with a bit of coaxing from a couple of guys that were repelling down the falls we kept going. Unbeknownst to us there were several sets - at least 10 depending on how you count - as you hike up.
You have to cross when you get to the first set. Come back down the river a little and find some logs to get across. You will find the steep path just back from the falls a bit. Was a bit tricking coming back down in the rain yesterday.
Once you get to the second set - you can't quite get to that one because of the amount of water coming down right now. But come back a little again and you can climb up another fairly steep path. Keep going along the trail. It is marked periodically with ribbons on trees. That is helpful. We had hiking sticks/poles. Not everyone will need but there were definitely useful coming down in the rain.
The last one is the narrow deep gorge - you can see that in the last picture and video. You can go past that to a bridge - not far from there. But half the bridge is out right now and because of the amount of water you are not going to find somewhere to cross unless you wanna get wet.
The trail keeps going but unless you have a desire to go several miles into the bush, come on back.
The volume of water right now makes everything perfect. It is not a long hike at all but you do get a bit of exercise with the climbing.