zzSea7 is made up of several beautiful GPU-based sea simulations.
zzSea7 comes in a zip file as a .scr, which is typical. Just right-click on zzSea7.scr after extracting from the zip file and select "Install." You also have the option to configure your settings, which only includes three seascapes at dawn, sunset, and one that features the aurora borealis.
Since some people have asked about the author both here and on other websites, Javier is a regular visitor and indie developer who creates screensavers and small apps and makes them available to you on MajorGeeks. You may not have heard of Javier before, but MajorGeeks has always supported the smallest of developers since 2001. As always, all files on MajorGeeks are scanned, tested, and reviewed.