Flood-tide delta: accretionary deposit of sand found on the bay or river side of an inlet and usually formed by tidal currents.

UNESCO: L O S S A R Y

At the other end of town, overlooking the stunning salt marshes and sand dunes of Cape Cod Bay, is the Inn at the Moors, with recently renovated rooms (many with balconies offering stellar views), continental breakfast and an outdoor pool.

FORBES: Provincetown 4 Ways: The Ultimate Guide to Cape Cod's Coolest Village

There, at the far end of the cove, situated on a fringe of sand between verdant hills and an iridescent bay, lay the Moken village.

BBC: The end of a wandering way of life?

Sand bar: accretionary deposit of sand formed across a river mouth or bay by wave action and joined to the shore at both ends.

UNESCO: L O S S A R Y

What should be a shallow, marshy environment, complete with a complex set of channels, islands and sand bars is becoming a flat, scoured bay subject to the full force of the Adriatic.

ECONOMIST: Flood barriers

The white sand beach faces a small, lagoon-style bay that's great for swimming.

CNN: 8 of Brazil's best beaches

Which it does: serene views of Little Narragansett Bay and Block Island Sound, spotless white-sand beaches, and a newly rebuilt, grand inn atop a scenic bluff, the Ocean House, which for decades had stood as a neglected sentinel, a reminder of grander times past.

FORBES

Byron Bay is one of a great string of headlands with white-sand bays stretching up the New South Wales coast into Queensland.

BBC: The perfect trip: New South Wales