According to the Ordnance Survey map, the much larger Finish Island (Fínis in Irish) half a mile to the south west of Calf Island should be accessible across the sandy beach at low tide. However I timed my visit to coincide with a low spring tide and there was no dry route to it. One account of Finish Island I found online said it is only accessible on foot when the spring tides are exceptionally low and my spring tide was only average.
Sandy beach near Calf Island covered in small round colourful shells
Sea radish? on Calf Island
Smoothed rocks on Calf Island
Thrift on Calf Island looking north west towards the mainland
Thrift on Calf Island - looking south west towards Finish Island
Rockpool on Calf Island