The Harbor itself is interesting from a historical point of view. There are also many cafes and restaurants, a small embankment, but I do not recommend staying in hotels, as it is a very noisy place at night.
It's a great place. There are many different bars. There are a lot of people on the coast, but if you go a little deeper into the old town, you go into a bar and you are the only visitor there. You order your own music and relax.