WordWeb Online

1. Hiking and camping overnight in backcountry, carrying equipment in a backpack
   - trekking
    
2. Carrying something in a pack on the back
   "the backpacking of oxygen is essential for astronauts";
   - packing

1. (sport) hike with a backpack
   "Every summer they are backpacking in the Rockies";
   - pack

Type of: bushwalking [Austral, NZ], carry, hike, hiking, rambling [Brit], walking [Brit]

Encyclopedia: Backpacking