Si el personaje escala una montaña o monta a caballo, eso lo hace un especialista.If the character climbs a mountain or rides a horse, that's done by a stuntman.
Mi esposa se crio en un rancho y monta a caballo con regularidad desde que era una niña.My wife grew up on a ranch and regularly goes horseback riding since she was a child.
¿Qué hace tu hijo hoy? - Hoy monta a caballo por la montaña con su tío Regino.What's your son doing today? - Today he's riding a horse in the mountains with his Uncle Regino.
Mientras Mirna monta a caballo por la playa con sus amigos, yo vuelo mi cometa.While Mirna is going horseback riding on the beach with her friends, I'm flying my kite.