Tumulus de Tumiac or Butte de Caesar as it is more usually called, stands up as a pimple on the road to Arzon in an otherwise flat landscape. It was built between 4790-4530BC. It is unusual as it is made up of clay and not stone. Inside was a small stone lined tomb containing a body and burial goods.
There is no historical basis for the popular legend that Caesar watched the sea battle against the Veneti here in 55BC.
There is a small car park beside the main road and it is a short walk to the bracken covered mound. A rough path scrambles to the top but there is no access to the central tomb.
There is little information about this on the web. The main reason this gets mentioned in the guide books is for the legend. Don’t waste your time walking to the tumulus, admire from the road as you drive past.