snail's pace

There, at length, they came at a snails pace, the moonlight shining on their clothes.

At the same time this snails-pace gives one a chance to observe things as he goes along, and there is much to observe.

He was riding at a snails pace and fanning himself with a wide rimmed hat.

The land mail between this and Detroit crawls with snails pace.

It lumbers along lurchingly with stress, at a snails pace; noted of all the world.