Peñíscola is a town that is east of Spain, in Castellón and is one of my favorite towns to spend the summer holidays.
Is a very quiet and great atmosphere. If you like good beaches, this is a great place to enjoy a good swim. You can also visit a castle in the old town, where many people go. Its tranquility and friendly atmosphere makes it a special place if you want a quiet holiday with family. In August there is a small exhibition that place in town for younger people.
Definitely, I recommend this place if you want a relaxing holiday with the family, as it is a very nice place, and not get bored of being there.