From the copyright page of the first printing:
"Some early portions of The Sea and Summer appeared in much shorter form in a short story, ′The Fittest′, published in Urban Fantasies (Ebony Books, 1985)." [See here.]
British publications of this work bore the title "The Sea and Summer", while American publications used "Drowning Towers". Counter-intuitively, The Clarke award, which is awarded to "the best science fiction novel published in the United Kingdom in the prior calendar year" was awarded to this work in 1988, but used the American title in the process.
Month from Locus1.
No artist credit in the pages of the book for the cover artwork.
The copyright page states "Some early portions of The Sea and Summer appeared in much shorter form in a short story, ′The Fittest′, published in Urban Fantasies (Ebony Books, 1985)."