Is Reversing Falls Tidal Rapids happening right now?

As of today, peak season now, through ~December 31. Earth Exhibit tracks the live conditions and flags it the moment it is on.

At Saint John, New Brunswick, the Saint John River is forced through a narrow basalt gorge as the Bay of Fundy tides rise and fall, producing turbulent rapids, whirlpools and a visible reversal of flow direction.

The interaction of extreme tidal range and constricted channel makes the site a predictable and dramatic tidal phenomenon.

Where to see it

A taste of where to see it. The full map, exact coordinates and the best timing for each spot live in the app.

Viewing spots
Reversing Falls Viewing Platform - East Bank (Uptown)
Reversing Falls Park - West Bank (Falls View / Fort La Tour side)

This is the short version

This page shows a taste. The app has the full list of where to see this, the exact timing, and live conditions for 1,000+ natural phenomena worldwide, so you know the moment one is genuinely worth the trip.