| Grade | Description |
| Easy | We walk on good trails and generally at low altitudes for only short periods at a time. These trips are suitable for anyone with a basic level of fitness. This types of trek involves 3 to 7 days, and walking is about 4 to 5 hours a day. |
| Moderate | A reasonable level of fitness is required as there may be some challenging days in the itinerary. The trails may be less obvious, the ascent/descent more steep, and the altitude gain more significant. |
| Demanding | We will be crossing high passes, glaciers, and making steep ascents and descents, so you will need to have a good level of fitness, and preferably some previous altitudinal experience. The trails may be awkward at times, and we may remain at high altitudes for long periods. It will be cold at night, and the trip may involve long days of walking. |
| Challenging | Basic mountaineering skills are required for these trips, which will involve extended periods at altitude, some tricky pass crossings, very low temperatures and long days of walking, often on difficult terrain. You will need a high level of fitness, and a real sense of adventure. It includes crossing snow - covered passes in very remote areas or climbing up to 6500m where some previous experience of handling axes and crampons is normally expected. Medical certificates are required prior to be accepted on these trips. |