For those who do not want to camp, here are some good, local options:
Llandovery RFC Campsite
The Start and Finish location for Cross Mountain is Llandovery RFC, which has full camping facilities, including electrical hookups, wifi and toilets and showers on site.
Penygawse Guest House & Tea Rooms
Superb guesthouse with great food, friendly staff and the best coffee in Llandovery
The Drovers B&B
5* Welsh Tourist Board rated B&B right in the centre of Llandovery
An alternative 5* campsite, should you not wish to stay at the event campsite. 1 mile from the event HQ, on the Eastern edge of Llandovery.