A cache for my eldest child, Orcadian by upbringing (hence her name). It is placed at the start of the Cowal Way (www.cowalway.co.uk) close to the ferry terminal from Portavadie to Tarbert.
The cache site is near where my grandmother placed an old gypsy caravan almost a century ago for the use of her Glasgow-based family. It remained there, used frequently, until 1975 when an oil platform construction company bought the area with permission from the UK government in order to create a platform-building site. The platform design was concrete (yes, seems odd) and the construction of the site destroyed all that was of beauty and memory in a wonderfully remote and iconic part of Argyll.
The irony was that the company never received an order for a platform, even though the N Sea oil boom was developing. Mis-calculations meant that it was likely to to be very difficult to tow the rig from Portavadie round the Mull of Kintyre (tricky spot) and clockwise into the N Sea past Orkney. So, in accordance with the regulations, they had to return the site to its original state if there were no orders in the first ten years.
You obviously can't return an enormous hole, out of which millions of square metres of rock has been removed, to its starting point; so things lingered on and they eventually removed the buildings before removing themselves, except for the huge workers' accommodation block nearby which looked rather like a university hall of residence. It decayed over the years till it was eventually demolished in 2017. The actual platform construction site has acquired a new life as an up-market sailing marina (http://www.portavadie.com), a positive out of a big negative.
The cache area is popular with muggly ferry-waiters and that was probably the reason why it disappeared.
There is parking ca. 50m from the repositioned cache (go through gate). The caravan stood in what is now a small grove of about a dozen birch trees. Search for a small plastic screw-topped container.