Its a deep harbor that is currently mostly industrial. I understand the plan is to move all the industry to another locale nearly completed and return Havana harbor to be a leisure harbor and destination for cruise ships and visiting yachts. Its going to be huge!
Obispo Street in Havana was the haunt of Ernest Hemingway. The famous Floridita Bar is at its terminus just outside the Parque Central and Hotel Ambos Mundos is at its head where he lived and wrote for many years