A weathered anti-aircraft cannon, military motorbikes and armoured personnel carriers covered in sediment, and, in between, colourful fish greet us at this wreck. It's the remains of the SS ...

Picture yourself deep under the frigid waves of the enormous Lake Superior. As you skim along the rocky bottom, an enormous shape emerges from the gloom. This isn't something natural — the lines are ...

In southern Costa Rica, local lore has told of two sunken pirate ships just off the coast in the shallow Caribbean waters. Well, there are sunken ships there, and they do date to the early 1700s. But ...