I stayed in Costa Adeje last summer with the family and agree there are a load of low flying helicopters around and a permenant nfz in place (see map already provided by @wpbooth.
I managed to get some flying in however, around the quieter parts of the island. Towards the north near Masca, we went off the beaten track a bit and took some of my favourite shots ever like the one below looking out towards La Gomera.
There is a flight advisory in the area - didn’t entirely understand it tbh as it seemed to suggest there was sensitive fauna (or maybe too many birds) and wasn’t sure if that meant a ban on drones or not - so just avoided the area to be safe.
I did also manage to fly on the edge of the National Park boundary road (see previous post) https://greyarro.ws/t/the-daily-video-thread/6523/37?u=lozzer
