to climb, to scale, to escalate
Esta montaña es difícil de escalar.
This mountain is difficult to climb.
Tengo muchas aficiones-pescar y escalar, por ejemplo.
I have many hobbies - fishing and climbing, for example.
Cuando Ahmad era un niño, podía escalar altos árboles.
When Ahmad was a child, he could climb tall trees.
Aquella montaña es fácil de escalar.
That mountain is easy to climb.
Es peligroso escalar esta montaña.
It’s dangerous to climb this mountain.
Me gusta escalar árboles de vez en cuando.
I like to climb trees from time to time.
Esos zapatos no son adecuados para escalar.
Those shoes aren't suitable for climbing.
Empezaron a escalar la colina.
They began to climb the hill.