Fastest localised current
Last updated: May 30, 2020 at 18:14 pm
17.68 knots (32.74 km/h / 20.34 mph) — Sechelt Rapids (Skookumchuck Narrows), British Columbia, Canada. It is estimated that for a 3.6 m (12 ft) tide, 757 billion litres (200 billion gallons) of seawater flow through the Sechelt Rapids in six hours. The Skookumchuck Narrows is also the site of the world’s fastest drift dive.
The Nakwakto Rapids, which are also in British Columbia, have been clocked at speeds up to 16 knots (29.6 km1h | 18.4 mph).