If you are visiting Steep Holm for the day via the scheduled sailings from Weston-super-Mare, you will have plenty of time to wander about, avoiding the gulls and why not pick up some caches whilst you are there!
The name of this cache will make sense when you arrive at GZ and I have provided a spoiler photo if you need extra help.
The container is known as a Petling and I ordered them after recently returning from a caching trip in Germany where they are very popular.
Have fun!