A wave took your glasses at Revere or Nahant

Often, and the frames decide how. Metal frames read on a detector like any small piece of metal, while plastic ones give nothing back, so those become an eye search on the wet sand at low water. Revere Beach runs almost 3 miles (about 4.8 km) along the boulevard, so before you leave, photograph the nearest pavilion or cross street and note the hour.

Usually, yes. Nahant Beach, also called Long Beach, runs about 7,000 feet (2,100 metres) along the causeway, and King's Beach, Red Rock Park and Lynn Beach line Lynn Shore Drive on Nahant Bay. That is a lot of sand, so send the access point or parking section nearest to where it came off, and the time.

By cutting three miles of sand down to a few hundred feet. A photo towards the water and one back towards the boulevard, with the nearest pavilion or cross street in shot, does that better than any description. Add the hour, because the tide here moves about 9.5 feet (2.9 metres) on an average day and a spot that was dry sand at noon can be under water by evening.

Mark the patch and keep people off it. The Common is about fifty acres and the Public Garden twenty-four, so what helps is the bench, path corner or tree you were nearest rather than the name of the park. An earring sits in the grass or just under it, so it is a slow, close sweep. Please do not wade into the lagoon looking for it.

Yes, because it is three miles of riverside grass and path between the Museum of Science and the BU Bridge, with the Hatch Shell lawn in the middle of it. Tell us the stretch, which side of the path you were on and what you were next to. If it went into the Charles, say exactly where, and you will get a straight answer about what can be done.

An Oura ring is metal, so a detector picks it up like a band. Pleasure Bay, M Street Beach and Carson Beach run as a three mile stretch along Dorchester Bay towards the Kennedy Library, so tell us which of them you were on and what you were nearest. If the app still shows a last location, send that screenshot too.

The two ends of that beach are different ground. Nantasket has about 1.3 miles (6,800 feet) of sand on the Atlantic side of Hull, and the tides often leave the south end covered in cobblestones while the north end keeps fewer stones. A bracelet down among cobbles is a slower job than one in clean sand, so tell us which end you were at.

Often, and small places are easier than famous ones. In North Weymouth, Wessagusset Beach sits on the Fore River, with George Lane Beach and its public boat ramp about 2,000 feet along the shore. Lynnfield has no sea beach, but a ring still goes missing on the Town Common on Main Street or at the fishing dock at Pillings Pond, and both are small enough to cover properly.