Please help! Read the story. What does the write have to do or use when he or she goes on hikes because some of the trails are inaccessible?

They sleep on the trails from 2 to 3 days

Explanation:

Spanish:

¿Qué tiene que hacer o usar el montañista cuando va de excursión porque algunos de los senderos son inaccesibles?

"...suben hasta zonas muy inaccesibles y muchas veces duermen allí dos o tres noches en tiendas de campaña."

English:

What does the write have to do or use when he or she goes on hikes because some of the trails are inaccessible?

"... they go up to very inaccessible areas and often sleep there two or three nights in tents."