This is a trip which can be covered in 2-3 days easily including local sight seeing and a one day trek. There are many volunteering options available for all those having some time and interest to devote time to help others. Locals are very helpful.
For someone planning a solo trip, this can be an ideal destination even for first timers as tourists are many and locals are very helpful.
Stay: One can stay at Dharamshala or McLeodganj depending upon the sequence of places one wants to visit. For trekkers, staying at McLeodganj and starting the trek in morning is a more convenient option.
Transport: Local transport is possible by hired taxis. For backpacking trip, local buses are readily available and are quite economical.
Get in: Dharamshala and McLeodganj are easily approachable by various buses starting from Delhi (ISBT Kashmere Gate). Volvo/AC/Non AC options are available
Temperature: Should carry a jacket for mornings/evenings in Indian summer months.
Some points to remember for solo travelers:
1) As usual, travel light, especially while going on trek.
2) Do keep water and some high energy stuff to eat. You can get maggi, omelettes, tea etc at two points in between the trek and at the top of triund trek.
3) To the local people, time runs very slow and they always tell you the distance is easily coverable in 15-25 minutes whereas it actually takes a normal person 1-2 hrs easily. Otherwise the local people are very helpful.