|west of Bald Mountain|
|The Mire, Velen|
Olena's Grove is an initially abandoned site overrun by endregas and accessible by fast travel in Velen. It contains several Endrega nests. Once the area is cleared of the endrega threat, Geralt earns 120 and 50 and an herbalist appears at the location along with other settlers.
- Legends claim that a beautiful nymph named Olena once lived in this grove. She fell in love with a young hunter and the man swore to be true to the nymph, but later betrayed her. She decided to punish him by casting a spell on his spirit, which wanders the grove to this day.