Yes, there is shallow water 10-12 miles North of Memory Rock light. Shallow enough to wreck a ship from that era. I like to enter the Bahamas in that area, it is not as shallow as between Sandy Cay and West End. About 4 miles North of Sandy Cay it starts getting deeper on the edge,( I went over it last week in that area) and then Memory Rock is about 4-5 miles North of that area, and it is 10-12' deep all the way till you hit the corner of Little Bahama Bank, then it curves to the East and gets shallow again. The area from North of Sandy Cay to the Corner is a gradual rise, it is real deep right off it. The area to the South has a fast rise, and it gets less than 4' at low tide.There are several wrecks in that area. Those boats drew 15' when loaded, so they could have easily hit there. The medium sized frieghters that take goods to the Abacos go over North of Memory Rock. The big ones have to go on the outside, and way to the East. The Bank itself is shallow.