There's no shortage of diving companies offering their services to divers and divers hopefuls, and Arrecifal is one of them. Most companies offer pretty much the same thing - around €30 to dive around the Mar de las Calmas, where you can expect to encounter colourful coral, majestic rock formations and a wide variety of marine life. Courses and speciality dives are also available. Opening hours tend to be flexible, according to the weather and the number of dives planned.