I can very highly recommend Deep Blue Dive, Fuerteventura.

I first qualified (PADI Open Water) about 8 years ago on a holiday to Domincan Republic and was strictly a vacation diver, but that all changed after a holiday to Fuerteventura.

I was so impressed by the quality of diving with the team at Deep Blue, that I decided I must take this SCUBA stuff much more seriously. Purely because of my experiences with the Deep Blue team, on returning to the UK, I ordered all my own kit, booked in for more training and am now qualified to PADI Rescue Diver with, so far, 4 specialities.

The Deep Blue Dive centre is very professionally run with exceptional hospitality. The centre is located right on the small quay at Caleta de Fuste, with literally only a few metres to walk to one of their superb ribs for a short trip to one of their great dive sites.

As for the diving, they have very detailed sketches of each dive site (check out on their web site) and very knowledgeable and qualified guides. Visibility was great, even in Summer and masses and masses of fish. The underwater scenery is fantastic.

I was lucky enough to see Angel Sharks, Barracuda, Eagle Wray, Tuna, Sea Horse and masses of other fish.

http://www.deep-blue-diving.com/Deep_Blue_Diving_Englisch/El_Castillo.html

A very worthwhile vacation dive centre, particularly if you need to combine diving with a family holiday.