Caves of Han-sur-Lesse (5/10) List item Submitted to "What to see in Belgium – top 10 sights to visit." Approved by Fortune January 27, 2020, 5:00 pm 17 Views Share Tweet Pin Source The caves are the result of the underground erosion of a limestone hill by the river Lesse. MoreReport Item navigation Previous submission Next submission View full list Share Tweet Pin Written by Fortune Leave a Reply Cancel replyYou must be logged in to post a comment.