Special Note: Please note that this scenario is meant to be read as entertainment, not as an accurate prediction of the future. Also note that the viewpoints and opinions that may come across in this scenario are not necessarily the viewpoints and opinions of the author.
The North Ocean of Mars was the first man-made body of water created on that planet. By the end of the 23rd century, pleasure boaters in their hydrogen-powered boats would consist the majority of maritime traffic on Mars.
After the completion of the North Ocean, the South Ocean would not be completed for another 50 months. This ocean helps provide drinking water and agriculture to the northern half of the planet. Prior to colonization and terraforming, this ocean was hidden under miles of Martian ice glaciers. People have learned to appreciate their waters for its natural beauty as well as its lab-created wildlife. Since animals did not evolve naturally as they did on Earth, it took slightly longer for them to evolve. Drilling for oil is banned on this ocean in addition to the Southern Ocean (because of the Deepwater Horizon oil spill incident back in 2010). In lieu of fossil fuels, the people of Mars start to become dependent on cold fusion energy as their primary source of energy. As Mars started to become more Earth-like, options to have hydroelectricity became a reality along with geothermal energy, solar power and wind power.
However, there are other mineral resources to be found in the underground caverns that are sheltered from the ocean. They can only be entered through submarines and ascending from underneath the ocean into air pockets that form the caverns' entrance/exit. Alien artifacts would reveal a statue of a beautiful goddess with three breasts; symbolizing a matriarchal hedonistic religion that valued pleasure over duty. The independent nation of the United States of Mars would adopt the three-bosomed statue as their centrepiece for their official state religion.
Because most of the people of Mars are either vegetarians or vegans, fishing on Martian waters never takes off as either a way of living or as a hobby. Genetically altered fish were imported to Mars from Earth until the population reached sustainable levels in the 2060s. In vitro meat for sushi becomes cheaper and more desirable due to their liberal environmentalist beliefs. Producing meat from dead animals without using artificial hormones is one thing; but being able to grow meat without killing animals would be an outstanding accomplishment for human civilization.