There are many positive effects in an endeavor the explore the ocean. Let me list a few of them.
First, we learn so much more about the planet that we inhabit. For example, we learn how complex the sea is and we even learn about new creatures, which is very exciting. In addition, we learn about new behaviors of creatures we already knew about. We also learn about the ocean floor, corals, and whatever else in beneath the sea. These finding can have many different applications.
Second, through ocean exploration, we also find at times sunken ships and other disasters from the past. This can be very exciting as well, as we able to see where explorers of the past went.