Learn Hardcore Hindi: हम पार्क की ओर चलेंगे।

In standard Hindi, it is the normal first-person plural pronoun. So the sentence is talking about more than one person, including the speaker.

What does पार्क की ओर mean?

पार्क की ओर means toward the park or in the direction of the park.

A useful pattern is:

X की ओर = toward X

So:

घर की ओर = toward home
शहर की ओर = toward the city
पार्क की ओर = toward the park

This phrase focuses on direction, not necessarily arrival.

Why is it की ओर and not just पार्क ओर?

Because की ओर is a fixed grammatical phrase.

In Hindi, relationships like toward, from, in, on, etc. are usually expressed with postpositions. These come after the noun, unlike English prepositions.

So Hindi uses:

पार्क की ओर = toward the park

not:

पार्क ओर

Here, ओर is a noun/postpositional expression meaning something like or , and links the noun to it.