I took those photos today on Valentia Island near Culloo Rock.
Heavy swell and a strong salty spray was certainly not easy on the camera and lens but I took the photos with my back to the wind and the frontlens stayed dry for some time. The area is beautiful any time but highly dangerous too. Never walk on any wet rocks and watch what is happening behind you. When taking photos check for emergency exit or place to cover in case of a big wave.
Mind your gear, the salt in the air is devastating on the camera body and lens. Clean all when home. Do not take any risk and do not go to close to the edge, people have died here.
When taking photos try different shutterspeed setting and stay settled to wait for the next nice wave.
