These days the tourists are supposed to travel with a guide. A guide will not help you with navigation but also with negotiation of prices of hotel rooms. They obviously know the place better and hence can suggest you the best places to eat and spend the night in. They will also brief you with the history associated with the monuments and monasteries you will encounter. They will help you with gears, medical emergencies and travelling arrangements. A porter is someone who will carry your baggage for you. Hiring a porter will help you enjoy long walks accompanied by beautiful scenic views.