Hi, I'm planning on buying a very inexpensive ~26 foot sail boat. I know
most marinas require some sort of insurance, right? How about transient
anchorages, moorings, etc run by the county/state? The boat is so
inexpensive that I wouldn't really care if it were a complete loss, so the
only insurance I'd get would be that which is required. Is that liability
insurance? Is there some sort of standard liability insurance or something
else super cheap? Thanks!

boats under 26 feet (actual) and 15 (?) hp usually are covered without
additional fee under your homeowners/renters policy. if you home/rent and/or
larger boat, many standard insurance companies (Allstate, for instance) will
sell a liability only policy on boats. Most marine insurance agents don't want
to even hear of libability only policies. Too little commission to be worth
the effort. They tell such doesn't exist.