The Zolle River is a large river that bisects the entirety of Fragaria. It flows through the city of Riverside, which is built on the banks of it, and passes by the Southern Woods on the way to the ocean. The river seems to keep the Woods secluded from most people which helps Fairies keep their existence secret.
The river appears to be sourced from somewhere to the north of Fragaria, it flows down from the northern mountain range. There is a secondary source in the southern mountain range that surrounds the Southern Woods on the West side before joining to the main flow.