My wive and I were on the island of Curacao. The hotel had a man made cove with direct access in the Caribbean. The first morning I went up the Concierge to inquire about a tide chart. The way he looked at me told me he knew not of what I'd asked. After a few moments, he asked me what I was talking about.. " You know, when the water goes out before it comes back?" ..... "Oh dhat, da water doesn't go nowhere mista, it jus stay dhere all da time, ya know"... Sure enough, about a 6" tide. Coupled with the light surf is impossible to really measure....~~(\__~~