How do starfish travel?

If you look beneath a starfish you will see a groove under each "arm", from the tip to the "mouth" in the centre. The grooves are lined with "feet", flexible, muscular tubes with suckers at their ends.The starfish can travel by sucking onto any convenient surface with the suckers and dragging themselves along.

Actually when a starfish hatches from its egg, it also can swim or drift along in the sea water. You could call that travelling too.