can I hike the trail with a baby carriage

No, a stroller on a hiking trail? Just say no.

There are a lot of wooden stairs on the path, as it follows the stream up the waterfalls. I would not recommend a stoller

There is a bus that takes you first half a mile. You got to walk after that. I have seen parents with many children carrying them on their shoulders as the kids get tired. You may need to plan accordingly. Having that said, this is one of the beautiful weather one should go for hiking. Have a great hiking!

It is not stroller friendly. There are a lot of stairs.

Sarath is absolutely right!