The Boat of a Million Years

From Author Wars - https://authorwars.com/publications/the-boat-of-a-million-years-36226.html

Overview:

Title: The Boat of a Million Years
Author: Poul Anderson
Year: 1990
ISBN-10: 074740609X
Publisher: Orbit
Price: £3.99
Pages: 604
Binding: Paperback
Type: Novel
Title Reference: The Boat of a Million Years
Notes: Apparent first printing as per copyright page.
Month from Locus1.
Note that copyright page states "First published in great britain by sphere books 1990".
Artist not credited although "PE" sigil is easily readable.
$10.99 in Australia, $17.95 in NZ.