Strenuous trips includes high passes, peak climbing with above 40 degree steep up and trekking in the high altitude above 3000 meters. Trekking in the high mountains is required such trips. Trips in this grade are generally about 6 to 8 hours walking a day and sometimes walking can be extended to 10 hours to while climbing peak below 6000 meter high. It would be very useful if you have experience of certain climbing skills and high level of stamina.
