Visited 22nd November 2003: William and I climbed Dinas, me with Alfie on my back. The plan was to get the boys out of the house so that Louise could work. Will coped well with the gradient (genuinely enthusiastic), especially as he was only four. Alfie slept most of the time (no enthusiasm there).
By the time we got to the top there wasn't much sunshine left. The oblique light worked to emphasize the contours of the fortifications, so it was easy to take photos. The views of the surrounding hills and Dinas Reservoir were as stunning as I remembered from the last time I climbed up to the fort. It got chilly as the sun set, and with the light fading we headed back downhill to the car, making it before it got dark.
Visited Winter 1999 (I think): The climb up to Dinas isn't quite as bad as it looks, but you'd be hard pressed to get a pushchair up there. Approaching from the south you can park at the gate just to the north of the bridge (SN741827) and there's a public footpath that goes east, then north, passing to the east of the hillfort. Obviously there's no point in sticking to this path because you'll miss the views to the west, and any chance of identifying the ramparts of the fort itself.
Up at the top the views are spectacular, especially to the west and east (towards Pumlumon Fawr). The climb is worth it just for the feeling of splendid isolation, and knowing that you're slap bang in the middle of an excellent cluster of upland Bronze Age sites.
Dinas is visible from most of the Bronze Age sites that surround it, so inevitably it's ended up in the photos I've posted up for them. Rather than post the same images up twice, here are some links to those photos: