Puerto Vallarta is a small town right on the beach. Accordingly, most of the beautiful and special sights are located quite centrally on and/or close to the main beach. Of course, it is also a little more touristy here. Outside the centre, it becomes quieter and you can enjoy some truly beautiful views of the sea. There isn’t actually much to see in Puerto Vallarta itself, as the town is relatively small and quickly leads up the mountain into the interior.
Go or not? I think it’s worth taking a short walk in the centre, and the beach promenade is definitely worth a visit. Otherwise, however, other things in Puerto Vallarta are a little more interesting.