They were talking and clearly valuing their companionship. Another place I might suggest for a visit is a public health clinic for less affluent people. Sometimes you will see couples with small children. More often you will see single women with children. You wonder whether there is a viable marriage in that situation.
Poverty is often a result of a marriage disconnection.
Women and children are most likely sufferers. I believe that marriage is instituted primarily to guarantee some security for children. Sometimes, however, drugs or alcohol or personality disorder screws things up. A visit to such a clinic might add meaning to the commitment vows. Our cruise group included a couple from New York.