Learn Spanish (Latin America): Hay que ir derecho hasta el parque. - You have to go straight all the way to the park.

This comes down to the current lesson! Hacia means "towards" (movement in a direction), but hasta means "until" or "as far as" (the limit). So hasta el parque means you go all the way up to the park, whereas hacia el parque just means you are heading in that general direction.

Why doesn't this use al parque? Doesn't a mean "to"?

If you used a + el (which combines into al), it would simply mean "to the park." Using hasta emphasizes the limit of the journey—you must go "all the way to" or "as far as" the park before stopping or turning. You don't use a and hasta together, which is why it is just hasta el parque.

Wait, doesn't derecho mean "right"?

This is a very common mix-up! Derecho means "straight" or "straight ahead." If you want to tell someone to turn to the "right," you use the feminine word derecha (usually in the phrase a la derecha).

The translation says "You have to", so why doesn't this sentence use tienes que?