Your clothing and trekking items are very important for a successful and fun trekking experience. Similarly, the things that are necessary for Rowling Trek are
Snow glasses and sunglasses.
Trekking Sticks.
Duffle bag or kit bag to carry to gear while trekking.
2-4 plastic bags 2-4 large plastic bags to separate clean clothes from dirty ones.
Daypack bag to carry your requirements.
Water Bottle, water purifying tablets.
Comfortable shoes etc