Annapurna in Nepal offers world-renowned trekking experiences, primarily the Annapurna Base Camp (ABC) and Annapurna Circuit treks, accessible from Pokhara via local transport to trailheads like Nayapul or Besisahar. Treks can be undertaken solo with proper permits (TIMS and ACAP), but guided tours or hiring a porter/guide are highly recommended for safety, navigation, and local insights, especially for less experienced trekkers. The best seasons are spring (March-May) and autumn (September-November) for stable weather and clear mountain views, while winter brings extreme cold and snow, and monsoon (June-August) heavy rains and leeches. A typical visit duration ranges from 7-12 days for ABC to 12-21 days for the Circuit, with costs varying significantly from $500-$1500+ depending on the duration, support, and luxury level, covering permits, food, and accommodation in teahouses. Essential insights include acclimatization to prevent altitude sickness, packing appropriate gear for varying temperatures, and respecting local culture.