If you find your way to the most southern part of Puerto Vallarta, to Old Town (Viejo Vallarta) and find your way to the beach there, known as Los Muertos (the dead), you will be grateful. ;-)
The name comes from a historical incident long forgotten. The beach has numerous restaurants which have placed umbrellas and palapa structures with chairs and tables on the beach for your enjoyment. Just buy something, some drinks, some food from them and you can have the place for the day. You will be grateful!!!