Look - two songs with the same name! The first is by Ramona Jones (nee Riggins), wife of old-timey country star, Grandpa Jones. The second is by Robin Williamson of Incredible String Band fame.
"Sandy Land" - Ramona Jones (1964 single, available on Grandpa Jones' Bear Family box set "Everybody's Grandpa")
"Sandy Land" - Robin Williamson (from "Myrrh", 1972)
On the subject of Sandy, here are Sandy & Papo, the MCs from the Dominican Republic who pioneered the Merengue House sound back in the mid 1990s (according to Spanish Wikipedia).