Dun Robin Broch
Chambers and original stonework still exists and can be examined and photographed, but the broch is overgrown with gorse, fern, and trees, and the site is treacherous, with hidden holes through undergrowth into chambers and other hazards. This broch is definitely not a family outing.
Not easy to find, this one. First of all, you will have to find somewhere to park on the single track road, and may have to walk a bit to the track that leads past the broch. To actually find the broch itself, best you can do is take a map with you and head off into dense pine trees in search of what is an overgrown mound of rubble. Until you're actually on top of the broch, it is unlikely you will see it. There are no paths, tracks, or signposts, and the ground is rough going. If you miss the broch, you could be in the trees for a while so don't get disorientated. If you wander too far down the hill, you will stumble onto a mountain bike trail and you will know you've gone too far. If you have GPS, use it.
Reproduced by permission of Ordnance Survey on behalf of HMSO. © Crown Copyright. All rights reserved.
Disclaimer: Some brochs were built with military defensive purpose, and as such can be situated in extremely dangerous areas, such as on the edge of cliffs and ravines. Additionally, these are Iron Age structures, most of them in ruins, and they are extremely hazardous, with crumbling stone walls and hidden chambers. Existing walls, lintels, and passages could collapse at any time. The information here is provided free but it is your responsibility to ensure its accuracy, ensure your own safety, and acquire permissions for access where necessary. Accessing brochs is done entirely at your own risk.