Although the river is a great place to explore - especially for those places inaccessible at any time except high tide, users should be aware of the hazards that exist in the river. It is not recommended to operate any of these small leisure craft in the fairways north of the commercial wharves at Kingston due to the density of river traffic and the presence of the Red Funnel vehicle and freight ferries, as well as Red Jet high-speed passenger ferries. The water can also get very choppy and the tide can flow in excess of 3 knots on a falling spring tide.
Specifically, windsurfing and paddle boarding is prohibited north of No. 8 fairway buoy, which is located south of Kingston Power Station. The Power Station is easily identified by its two large chimney stacks. Further information can be found in the General Directions.
Care should also be taken when passing across the entrances to marinas or gaps between pontoon moorings as leisure craft entering the fairway may not be able to see you approaching due to your low profile and you are likely to be hidden behind vessels moored alongside the pontoons.