On the Regent’s Canal from King’s Cross
London Canal Museum Tunnel Boat Trips
The museum offers a programme of trips on three days per week including tunnel boat trips, cream tea cruises, and long boat trips to Victoria Park in East London or Little Venice in West London. A museum visit is included at no extra charge. A guide travels on board and gives a commentary, and all trips include a cup of tea or coffee. Trips are normally operated with the passenger boat Long Tom, which has large picture windows ideal for sightseeing. Passengers are seated at tables.
Details and booking at https://www.canalmuseum.org.uk/whatson/tunnel-trip

The Copper Quay
These operate from Granary Square on selected dates on the boat Freyda. In addition there are some evening public cruises with entertainment on board.
Details and bookings at https://thecopperquay.com