Stari grad Smlednik is a small hilltop castle ruin that rewards a short, steep walk from the village with wide views over the valley and surrounding hills, so plan for about 20 to 30 minutes uphill on uneven forest paths. It is a low-key spot, good for photos, a quiet picnic and pairing with a nearby vineyard visit or a short detour from Ljubljana, and you should respect any fences or private land around the ruins. Best lens here is telephoto as you can isolate interesting parts of the landscape. In the morning there often mists in the valley and usually the castle is above them. At sunset there is a beautiful backlight in the scene - best photographed with telephoto lens.