The Radeščica is a right tributary of the river Krka below Soteska. Its source is in a karst lake at the foot of Kočevski Rog. A few kilometers long stream runs past Dolenjske Toplice and is in full flow well inhabited by brown and rainbow trouts, graylings join them in the lower part. Occasionally some huchen from theKrka wanders in it..
As with most karst waters even in the Radeščica the most successful are spring and early summer fishing.