Lanzarote is by far the northernmost island of the Canaries. This means it is the most exposed to north, north-east, and north-west swells, which are the most common swells in the Canary Islands. So this island gets the best and most frequent waves!
There are more than 30 high quality surfing spots on Lanzarote. Even when south swells, not as common as the others, hit, you can still catch some decent waves in Famara!