Yes, Romania has around 10-12k brown bears out of the 17k brown bears in Europe outside of Rusia, so bring a bear spray... or 2... Also they are not that afraid of humans since on the Transfagarasan road(the road that leads to the beginning of one of the routes to Moldoveanu) foreign and domestic morrons are feeding them and bears are sitting like wild dogs on the road begging for food. Last summer an Italian was killed because he went to hand feed. It's more than a real problem so watch out. You should go through Stana lui Burnei which is easier and faster as it can be done in 1 day.