This would be the Rideau Canal built almost 200 years ago to bypass the St Laurance River which could be blocked by the US if hostilities resumed after the 1812 war. This web site has an extesive history of the canal for any that are interested, https://www.rideau-info.com/canal/h...4K4_Sp1-ZiDEe0gEUKRcJ4amxf1d3yEJ5uvSkYHU

FL has no canals nearly that old but it does have a Spanish fort that was built in the 16th century.

A canal not far from me. Has a 'flight' of 30 locks, originally 58 until a lifting device was introduced in the early 19thC, each lock having a lift of 11 feet on average.

You have to REALLY want to get through to make that trip!

That looks very narrow. What will fit through there? A zodiac? https://www.amazon.com/Typhoon-Zodiac-Aero-Floor-Inflatable/dp/B0958SC6ZK

A 'full width' barge or two narrow barges/narrowboats at a time. The commercial traffic that drove the industrial revolution, making Britain a first class Nation and Empire when carriage by ox cart and waggon was 'state of the art'.
A victim of it's own successes as railways were built using the coal and steel carried on the canals on parallel routes (often a literal stone's throw apart), and capable of moving similar quantities in waggons at 20-30 miles per hour, rather than by barge drawn by horse along the towpath.

Navigations using locks, pumping houses and retention pools were sometimes much more efficient than longer contouring routes, or very large tunnels or aqueducts - though all four methods had their place and were used. There is a smaller set of locks at the start of the canal navigation that links to that flight - 7, 8/9 (deep lock), 10, 11, 12, 13 within easy walking distance of where I live and I can see the 'sort of' navigable river, railway and canal running parallel just across the park from my windows.

Close by are the remnants of the coal canal and its cassion locks which were much more frugal of the limited local water supply than the gated locks. Those were not restored in the 1960s, and are empty, overgrown and mere historical curios, while the restored canal is a very popular tourism thing, and a walking/cycling route and link to other footpaths and byways along the valley. There are some working cassion locks where a large change in height is required between canal and river, elsewhere, and these are apparently so easy working that a barge can be lifted by hand, though the pair of locks and their 'arm' is motorised.

K&A was built between 1794 and 1810 to link the western Avon River Navigation at Bristol with the eastern Kennet River Navigation (which links via the Thames at Reading and onward to London).

It was abandoned in 1948, then restored since the late 1960s though only very lightly for commercial traffic (there is more than none, but well... not much), mostly for holidays/day hires and in places for permanent accommodation. The towpaths are extremely heavily used in places though there is usually some foot and bike traffic even in the quieter areas well outside towns.

In 1967, Canada's Centennial, 8 of us paddle the 125 miles (202km) length of the canal in a large canoe in 2 1/2 days.

British Narrowboats are at most 7 foot wide. This enabled the many remarkable feats of engineering to be constructed for our extensive canal system such as the lock flights, aqueducts and tunnels and to dig waterways through our crowded towns and cities. Wider canals such as seen in Europe would be too impractical and costly for our Kingdom's topography.

Many of our dormant and neglected canals have been revived and repurposed for the leisure industry as Lieste describes. Even for permanent accommodation, with enterprising people developing floating moblie supply and there has been a revival of the traditional artwork adorning these boats in past times.

Pretty boats.