You'll have to progress through the missions. Once you reach a mission in Las Venturas called Saint Mark's Bistro, you'll have to travel to Liberty City. You only get to see a small section of it, and you can't explore it.
You'll have to progress through the missions. Once you reach a mission in Las Venturas called Saint Mark's Bistro, you'll have to travel to Liberty City. You only get to see a small section of it, and you can't explore it.