The Costa de la Luz is beautiful and relatively unspoiled and if I were sitting where you are it would be pencilled in. However, you may be looking for choice and it can be easier to discount the overcrowded places in mainland Spain. Obviously you would know these places e.g. Benidorm etc.
Don't forget to pencil in Mojacar Playa, Costa Almeria which has a half Spanish, half ex-pat community. Ibiza it is not, but it is an established holiday destination which is not as busy as most of the other Costas. Many of the Brits living there have escaped from the hustle and bustle from elsewhere in Spain.
There are two Mojacars (Pueblo and Playa) separated by a distance 3 kms. The playa is the main holiday strip and has a healthy selection of Spanish, British, Italian, Argentinian, Bolivian, Chinese, Inidan etc cuisines. There are good supermarkets also.
The pueblo is a white mountain top village with narrow streets colourfully decorated. There are magnificent views of the surrounding countryside from several areas of the pueblo.
There is a good local cost effective bus service linking the pueblo to the beach if you don't feel like the walk. Another inexpensive coach service links the area to the surrounding villages where there are extensive markets.
The beaches are clean and there are free childrens' play areas along the promenade. Walking (as difficult or as easy as you wish) is recommended. Granada is a two hour drive by motorway and the city itself is beautiful with much to see, but do not miss out on the Alhambra Palace (bookable online in advance to save queing). Do your homework before you leave, otherwise you could miss out.
Driving in the Costa Almeria region is easy and there are panoramic views everywhere. Cabo de Gata Natural Park is worth a visit.
AlmerÃÂÂa, Murcia, Alicante airports are 45, 90, 125 minutes drive respectively from Mojacar. Each airport is served by low cost airlines from the UK.
Costa AlmerÃÂÂá is the driest and warmest area of mainland Europe.