The Wey Navigation runs from the junction with the River Thames at Shepperton to Guildford, where it is joined by the Godalming Navigation, which runs to a terminus at Godalming. The Wey Navigation is 15.3 miles (24.6 km) long and has 12 locks. The Godalming Navigation is 4.2 miles (6.8 km) long and has 4 locks. The Wey Navigation is joined by the Basingstoke Canal at Byfleet. The Godalming Navigation is joined by the Wey & Arun Canal (under restoration) at Gun's Mouth, above Unstead Lock.
The maximum size of boat that can navigate throughout the Navigations is
length: 73' 6" (22.4 metres)
beam: 13' 10" (4.2 metres)
height: 6' 0" (1.8 metres) - Godalming Navigation
draught: 3' 0" (0.9 metres)