This shot was taken inside the archway between Cathedral Cove and Mares Leg Cove. As low tide was still about 3 hours 20 minutes away you can see the waves coming into the archway from Cathedral Cove.
Show on mapTechnique:
The shooting was done with a 2.60 meter (appx. 8.5 ft) pole to reach a more elevated viewpoint. The lens was mounted with a custom-made bracket. Stitched from five images taken with a Walimex (Samyang) 7.5mm fish eye lens on a Sony QX1. Four images around and an additional image for the nadir. Due to the high dynamic range of the sensor I only needed one exposure (with extreme boosting of the shadows while converting the raw images).