3.) Trek to Jogini Waterfall - This 4 kms trek takes around 1 hour depending upon your speed. It starts from Vashisht temple and takes you from local villages. After a point you will have 2 ways, either take the normal one which is not very steep or take the offbeat one. I obviously took the offbeat one which is very steep. You will find different pathways on this and will have to create your own at the end. If you are lucky, you will find a Gaddi (pahari dog) who will guide you, but if you don't, then keep walking towards the sound of waterfall and you will eventually find the pathway that will lead you to it. There are no charges to visit this place. If you are visiting Manali then you should definitely visit this place. I have made a video on this place too, linked below.
P.S. - You don't have to be very fit to do this trek, a normal person can easily do it. Not recommended for senior citizens.