Beerman you are correct! EllenS was soooooooooooo close.

Indeed it is Ministers Island just off the shore near St. Andrews, New Brunswick, Canada. It was a getaway for Sir William Cornelius Van Horne, KCMG. Who was American-born who built Canadian trans-continental railway. The island is only reachable twice a day for a short period depending on the tides of the Bay Fundy.

Here is a link to our blog Northern Adventure that Carol and Beerman mentioned.

You are up Beerman.... Sorry EllenS