Best done on an overcast day as there is no shade on the walk. Take water, hats and sunscreen if done in the heat, but this is not recommended. The weather can also change radically in short amounts of time, and taking a jacket along is a good idea.
The blowhole makes a great collection of sounds and can be quite impressive in high seas.
Park at the Parking lot as indicated by the additiononal waypoint. Climb through the style in the fence. The cache and the walk to the cache are on public land. The strip of land about 10 to 15m above the high water mark is public land. Please stay in this zone when walking to the cache.
On the way you will pass the wreck of "The Osprey". A waypoint is provided. There was a cache here, now archived. The wreck dates back to 1867! Most of the ship was built of wood and has subsequently disappeared. All that remains are small twisted hunks of metal. The ship apparently simply steamed straight into the land with no attempt to stop or slow down. The Captain, Navigation officer and another Luitennant were all court-marshaled. One sailor died.
The blowhole can be found about 15m from the cache coordinates in the direction of the sea.
Thank you to Navimate for offering to assist with maintenance.