Learn Spanish (Latin America): Me gusta caminar por la ruta vieja.

In Spanish, por is used to talk about movement through, along, or by a place. If you used en (caminar en la ruta vieja), it would sound more like you are walking in or on a specific spot rather than traveling along its path.

Why do we use Me gusta instead of a word like Yo gusto?

The verb gustar works differently than "to like" in English. It actually means "to be pleasing to." So, Me gusta caminar literally means "To walk is pleasing to me." That's why we use the object pronoun Me (to me) instead of the subject pronoun Yo (I).

Why isn't the verb caminar conjugated?

When you are talking about an action that you like to do, you always leave that action verb in its infinitive form (the original dictionary form ending in -ar, -er, or -ir). After gusta, the infinitive caminar acts like a noun—the act of walking is what pleases you.

Why does vieja come after ruta when in English we say "old route"?