A walk along a shore becomes a quiet reckoning with loss, aging, and fear. The speaker finds a new walking stick among the debris on the beach, since the old one was buried with the old dog, just before their son moved away. Small endings pile up, yet the couple has learned how to be together, balancing silence and talk, closeness and solitude.
Then an old woman in a blue hat warns them about every third wave, and the next one nearly topples the speaker. The poem jumps to a recovery room, where the speaker waits for news and wants only for the walk to continue. The poem doesn't explain what happened, but the waiting suggests a health scare. The wave seems to stand in for it. The mood is tender and anxious, but steady. The ending, with "double prints" in the wet sand, offers a quiet hope that they will keep going together.