OBAS Top Stream
Flowing channel connecting the Great Ouse with the D-section boat channel; narrow, intimate and free of boat traffic. Stretch and boundaries: Named Top Stream section within OBAS fishery. Habitat: Up to roughly 10 m wide and around 2.5–3 m deep, flowing and boat-traffic-free. Narrow flowing Great Ouse side-channel with no boat traffic.
Rules
Rods: Maximum 3 under general rules. Bait: Not specifically stated for this water. Hooks: Not specifically stated. Fish care: Use suitable unhooking mat and large landing net for carp. Access: Via OBAS main car park. Parking: Main coded car park; 1.9 m height restriction. Other: All fish returned; follow OBAS rules. Seasonal: River close season applies. A valid Environment Agency rod licence is required. Check latest rules & availability before travelling.