The altitude of the trek varies according to trekking destination and expedition. Some of the high altitude treks and expeditions like Everest Expedition, Manaslu Expedition, and Annapurna I Expedition where you can expect an altitude above 8000m. There is numerous other expedition that exceeds the 8000m mark. This also requires extreme precautions and preparations that must follow these journeys.
The altitude in treks can vary as per the destination like 5545m at Kalapatthar in EBC, 4130m at Annapurna Base Camp in ABC, and 3120m at Poonhill viewpoint in Ghorepani Poonhill Trek. Some treks also involve trekking in high altitude regions above 4000 meters for multiple days. Tours and hikes generally traverse lower altitude regions. They are normally designed for first-timers and ones who are in a time crunch.