If you want a lot of space near the beach, definitely look at Luis' place! We have a family of 5 (two adults and 3 older teens) and there is a lot of space here! The shower is great and the beds were really comfortable. I can't imagine many places that are physically closer to the beach and you could easily make trips back and forth if you wanted.
The only considerations I would suggest is how hot it is while you will be there. We would have preferred to sleep with the windows open, but there are a couple restaurants right outside and it was too loud to do so...so we were warmer at night than we would have wanted. There are a few nice places to eat close by (good bakery and great fresh fruit market on the same street), but I'm a big time foodie and you needed to plan dinners a bit because really, top end places are 1 mile or more away....