St. Martins, New Brunswick
N 45° 21.458 W 065° 31.397
The Sea Caves of St. Martins are located on the shore of the Bay of Fundy on the northern end of the village of St. Martins, New Brunswick
The Sea Caves of St. Martins are shallow caves carved into sandstone and conglomerate rocks that are are part of the Triassic Honeycomb Point formation by the erosive action of waves and tides of the Bay of Fundy on the coastal cliffs. They are part of the Stone Hammer Geopark system.
The Bay of Fundy has the highest tides in the world, thus at high tide the caves are flooded. However at low tide the water retreats and the caves can be entered by land after walking across the exposed ocean floor and wading across a stream.
The tide rises and falls every 6 hours and 13 minutes, thus there are new times for high and low tides every day. Consulting a tide chart is important, as the tide changes of the water level can be up to 38 feet on the shores at St. Martins.