User blog comment:Abranon/Where is the Horcrux Cave?/@comment-117.120.16.133-20120220070912

Well... according to HBP and DH, the cave was refrenced to be beside a beach, however the exact location is never given. In the books, its just frustrating as kreacher has every little detail except the EXACT location. However, had keacher, Mrs Cole or dumbledore over divulged it, it would've ruined the storyline. :) Dumbledore, by revisting and revisiting the memory would've been able to apparate there by memory. It implies in the book that dumbledore had been there more than once. (well... it does)
 * ) (BTW, did u kno that the kid who plays a baby harry in PS also plays Albus in DH?)