Bled, the Vintgar Gorge and back
Half a day, about 120 km — the lake plus a walk along the river gorge's wooden walkways.
Same lake, same boat, same castle climb — and on the way back we stop at the Vintgar Gorge, a kilometre and a half of wooden walkways bolted straight into the cliff face above the Radovna river. The water below runs an improbable turquoise even under grey skies, carved through limestone over thousands of years, and the walk ends at a small waterfall where the gorge finally opens out. It's an easy walk — boards and railings the whole way, no climbing — but they get slippery when wet, so proper shoes help more than they do at the lake itself. Between the two stops you get Bled's postcard view and a very different kind of water, five minutes apart by car.
up to 5 h and 150 km