You’ve seen big Caterpillar excavator at work on land, probably many times.

Seeing it underwater is like something out of the twilight zone.If you have never seen an excavator that is working underwater, you must see this...

This amazing CAT excavator is designed so good that it can continue to work even at ...

There are two approaches to excavating underwater. The first is through the use of amphibious excavators which work primarily in swamps, marshlands, and relatively shallow water.

This blog post focuses on the second approach: excavators used in deeper waters which are partially (or totally) submerged.