A wild, unlit cave in the Anina Mountains with more than 6 km of passages on three levels, 1,750 m of which you explore with a helmet and head torch, led by the national park's rangers.
A geological reserve in Sălaj with 10–15 m sandstone towers and spurs, shaped by erosion and named by locals "the Dragon and the Dragoness", "Fata Cătanei" or "the Monks".
An ice cave in the forests of the Galbena Valley near Padiș, reached on foot along a marked trail. Around midday, light pours in through a hole in the roof and falls on the ice.
A reservoir on the Ialomița at 1,438 m, in the heart of the Bucegi Mountains, held back by a 55 m stone dam and ringed by spruce forest, between the Tătaru and Zănoaga gorges.
A waterfall of about 15 m, split by a rock into two streams, in the Nucșoara valley in the north of Retezat National Park; a 15–20 minute walk from Cârnic.
One of Romania's oldest show caves, with a 16 m high entrance arch, vast chambers on two levels and one of the largest bat colonies in the country.
The “Dragoș Vodă” reserve, founded in 1968 in Vânători-Neamț Nature Park: a small zoo with bison, deer and birds, at the edge of the forest where free-ranging bison live.
A cave more than 10 km long, carved by the Olteț river into the limestone of the Olteț Gorge, with 800 m of gallery open to visitors and legends about Zalmoxis, a kilometre from Polovragi Monastery.
An 800 m wall of red clay and sandstone on the edge of Sebeș, carved by rain into columns, towers and earth pyramids, a badlands landscape rare in Romania.
A lit cave on the slopes of Postăvarul, between Râșnov and Poiana Brașov, with a great hall over 20 m high, visited with a guide and sometimes used for concerts.
A 70–80 m chain of waterfalls, with a 25 m main drop, plunging into a huge sinkhole in the Trascău Mountains and vanishing underground; seen from a wooden balcony a short walk from the road.
A two-tier waterfall of about 50 m in the Cerna Mountains, with Romania's longest free drop (~40 m), above Lake Prisaca; reached by a steep 1.5 km path from the Cerna valley road, 13 km from Băile Herculane.
The last working forest railway in the Carpathians: a steam-hauled train climbs 21.6 km up the Vaser valley, through the Maramureș Mountains Nature Park, to Paltin station.
A cave crossed by a mountain stream north of Petroșani, with a 20 m-wide portal and a gallery of about 466 m walked end to end on footbridges, beneath the Dacian fortress of Bănița.
The last wild beach at the southern edge of the Danube Delta Biosphere Reserve: shell-strewn sand, dunes and a low earth cliff, with no hotels, sunbeds or lifeguards.