List, If you are a conservative type and use a anchor scope of 7:1, then twice the scope should keep you away from the rocks and most other boaters. But, I am really conservative because I like my sleep so I use 10:1, and usually have no problem convincing people who arrive after me to stay that far away if I am first in the area. If not, then i find an area I can get 10:1, even if that me a longer tender ride. But, if tied stern to to a rock, then some have been as close as 10 yards from me.... Lee ========== Ken asked: I'd be curious what distance others consider the "minimum" to another boat when dropping anchor...