I have been reading studying about ponds for a year now and plan to build
one in the spring. I had planned to use a flexible liner. However, my son
has come up with an intriguing idea and asked me to think about using an old
fiberglass ski boat that has been in our barn for years. He proposes to
sink about two thirds of it into the ground at the bow, while the stern
would be just above ground level. He has all sorts of interesting ideas
about where to put filters and such and his enthusiasm for the project is
infectious. Before he starts digging that hole I would like to hear from
you all. Pros and cons, advice, is it even feasible, what things might have
to be taken into account that would not necessarily be considerations if I
use flexible liner, what NOT to do, etc.

Thank you!