during the past few decades, various diving expeditions in the caribbean have found odd structures under water (2) . for example, near the bahamian island bimini, megalithic walls and roads of hundreds of metres long were found, among other things. the roads were laid on a carefully constructed foundation, and could therefore definitely not have originated naturally.

How would the previous sentence be correctly capitalized?
During the past few decades, various diving expeditions in the Caribbean have found odd structures under water (2) . For example, near the Bahamian island Bimini, megalithic walls and roads of hundreds of metres long were found, among other things. The roads were laid on a carefully constructed foundation, and could therefore definitely not have originated naturally.