We can now see some reversed written words at the end. Let’s split after that middle 1
a2poZWlnaHR0aHJlZXR3b3NpeHNpeHF1
ehtretawsdaerehtskramniehtdnas.
The first string has 32 characters made up of numbers, capital and lowercase letters. Convert it from Base64 to text
kjheightthreetwosixsixqu
kjh83266qu
Reverse each words in the second string
the water reads the marks in the sand.
Searching on Google gives the quote “The ocean is a Turing machine, the sand is its tape; the water reads the marks in the sand and sometimes erases them and sometimes carves new ones with tiny currents that are themselves a response to the marks.”