“Sea Changes” is the name of a book I used to own. I gave it to a friend. I found it to be a boring novel.
Year was 1992. It was a hard cover book. I cannot find it through google.
http://www.amazon.com/s/ref=nb_ss_gw?url=search-alias%3Dstripbooks&field-keywords=Sea+Changes&x=14&y=28
“A Sea Change”; Lois Gould, 1977. Has a great lesbian sex scene.