The cache is located near the site now owned by a group of railway enthusiasts. Their long term aim is the reinstatement of the line. The 20 acres of grazing marsh, including approximately 1 mile of the original track bed, have been the subject of a number of planning applications which have unfortunately not found total support amongst all of the villagers. Recently though, the group has gained permission to place a grounded van body and a composting toilet on site to enable volunteers to continue with clearance of the site and hopefully a permissive footpath for walkers (though apparently some of the locals object to this too despite expecting to be allowed to traverse the land themselves).
You never know, this may be the first REALLY SideTracked cache that becomes a plain SideTracked!
Please visit the related web page to find out more about the SideTracked series of caches.
You are looking for a small clip-lock box in a camouflaged bag.