Highlight
Montgomery Reef Tidal Waterfalls
Watch a vast reef rise out of the sea as the tide falls, with water pouring off every edge.

Typical duration
90 min
Price
Included in expedition fare
From port
4 km / 2.5 mi
Transfer time
20 min
Indoor / Outdoor
outdoor
Queue risk
low
🕐 Best time to visit
Falling or low tide, as set by the expedition team
Montgomery Reef in Collier Bay is one of the world's largest inshore reefs. When the tide falls, up to 10 m in a few hours, the flat reef top emerges and seawater pours off its edges in countless small waterfalls and rapids. Expedition teams time Zodiac cruises for the falling tide, running along channels where turtles, reef sharks and rays gather and herons and egrets fish the shallows.
Getting there from the port
Zodiac from the ship anchored off the reef in Collier Bay