The final climb to the summit is about 1000ft gain in less than a mile. To make things more hard, the trail is a bit hard to follow but you just keep looking at the peak and walk towards it.
Just before you start the final climb, there seem to be a fork in the trail, which is not clearly visible on the way up, but is clearly visible on the way down. You could take any of those trails, both lead to the top of the mountain. Each of them is equally strenuous and equally confusing.
From this point, the trail starts climbing up and is not that clear, but you keep following the stone cairn markers and you will eventually reach the top.
You will be hiking through loose rock and have to be careful with your footing.