Inca trail is for people in fit and who usually do exercises, it is not recommend for children and old people. You should stay in Cusco city to acclimatize, at least 2 days before your trek. In February, Inca trail is in maintenance that means that is close through all the month. If you want to take the trek take note that you have to book it in advance, at least 90 days before, due to the regulations; the limit numbers of people is 500. Also at the moment you are going to book you must to have all the principal information such as complete names as the passport, nationality passport number, date of birth. Availability is controlled by the Peruvian Ministry of Culture. Only they are able to manage and authorize the access to the Inca Trail.  During the trek drink plenty of water, use sunblock, do not throw garbage, use a plastic box. Usually one day before your trek you have a meeting with your guide, he will give all the necessary information for the trek.