Places to surf in Fuerteventura depend on the swell direction and local weather conditions.
To find the best surf spot you need to be aware of the weather conditions both now and in the near future. A great website for forcasting surf and wind conditions is Windguru
Some of the waves in Fuerteventura are very powerful and can be big. Before entering the water make sure your level of surfing is equal to the waves. If you normally surf in Northern Europe you will find the surf in Fuerteventura can be very powerful and even dangerous.
Watch the other surfers, see where they enter and leave the water. Have a plan if things go wrong.