I did this as my first Ultra this year, the course was along coastal roads on the Llanelli waterfront for the first maybe 12 miles then an uphill section to around 17, the turnaround was at 21 miles then back to the coastal route. Support was really good with bag drops etc, and bike Marshalls, the course was very well marked. The uphill turns into a very welcome downhill from about 23 - 30, I'd recommend it, I signed up again as soon as I possibly could despite the extra three miles and the 300 mile trip