Skiathos Sailing, (close to the airstrip)
Skiathos has an interesting Airport! It's really small and can be easily located on a map of the whole island which isn't particularly big.
I would watch the locals sailing close to the strip not bothered by the Jets landing.
There's a Taverna right next to the the landing zone so you can watch the planes come in - a must if you visit Skiathos.
Plus interesting health and safety signs which deter you from getting too close (as shown below).