Within walking distance on the beach from Calahonda, you will find one of the loveliest Marinas on the coast.
Not as Grand as the Marina of Puerto Banús, but with some very nice big Yachts and impressive motor boats to look at, an array of great restaurants, and a laid back atmosphere.
Add to this, a beach immensely popular with families, as the water is very shallow.
You can walk out into the Med for several minutes, and the water will still only reach your bellybutton, so a great place for children to swim and play in the water without any fear from the parents.
A note of caution though, a bit further down the beach towards Marbella, you will find a Nudist beach, which took yours truly a bit by surprise the first time I found myself there after a nice swim along the coast.
Even though I was only wearing trunks, I felt awkwardly overdressed!