The co-ordinates at the top are not the location of the cache, but of Craigmillar Castle. It is not necessary to enter the castle site for doing the cache, although I can certainly recommend it if you have the time and inclination. For up-to-date opening hours and other useful information please check the user link at the top of the page. I have placed the containers in an arc around the castle, so you can view it from different sides while walking from cache to cache. There are also good views to some of the other hills of Edinburgh.
The idea of this multi cache is that there are four containers hidden in the usual fashion but only one of them contains another container (the inner cache) with a log and the usual swaps. Rather then following a pre-determined order you can plan your route any way you like starting from any one of the suggested access points (or even from somewhere else). Depending on your luck or understanding of the mindset of the cache hider you might find the inner cache straight away or only in the fourth location. Let me know in your log how many finds it took you, but please don’t give away the location of the inner cache. I reserve the right to move the inner cache to a different container at any time. If you would like to move it yourself (optional), please do it quickly to minimize the chance that another cacher finds all four places empty.