Paul, the beaches around Old Town are smaller but more "mexican". There are some nice restaurants (some of them cheap, others a little more expensive).
All right on the beach.
The area of town is so interesting. At the moment the old pier there is under renovation, but once ready you will see people fishing, watercabs pickingup/dropping off passengers etc. Nice in combination with a walk over Malecon to see all the statues and then relax at Los Muertes.