The Reitdiep is a historic waterway winding through the province of Groningen in the northern Netherlands. Flowing through the flat, open polder landscape characteristic of this region, the river connects the city of Groningen with the Lauwersmeer and ultimately the Wadden Sea. As part of the broader Noorderzijlvest water management area, the Reitdiep serves both as a drainage channel and a navigable waterway, giving it a character shaped by centuries of Dutch water engineering. Its banks are lined with the quintessential Groningen countryside — wide skies, agricultural land, and occasional reed beds — creating a peaceful and scenic setting for anglers. The waterway supports a healthy and diverse community of freshwater fish, making it a worthwhile destination for coarse fishing enthusiasts in the northern Netherlands.