▁officer ' s ▁qu arters ▁as ▁renov ated ▁homes . ▁The ▁abandoned ▁concrete ▁coast al ▁art illery ▁batter ies ▁exist ▁in ▁the ▁woods ▁at ▁the ▁east ▁of ▁the ▁island , ▁although ▁they ▁are ▁techn ically ▁private ▁property ▁and ▁off - limits ▁due ▁to ▁safety ▁concerns . ▁The ▁community ▁is ▁g ated ▁and , ▁for ▁the ▁most ▁part , ▁not ▁open ▁to ▁the ▁general ▁public , ▁although ▁the ▁Diam ond ' s ▁Edge ▁restaurant ▁is ▁open ▁and ▁located ▁just ▁off ▁the ▁Cas co ▁Bay ▁fer ry ▁dock . ▁T ours ▁of ▁the ▁grounds , ▁by ▁res ervation , ▁are ▁available . ▁A ▁limited ▁number ▁of ▁homes ▁have ▁been ▁built ▁on ▁the ▁water front ▁areas ▁of ▁the ▁island ; ▁many ▁have ▁been ▁featured ▁in ▁local ▁mag az ines ▁and ▁newsp apers . ▁The ▁Fort ▁McK in ley ▁Historic ▁District ▁was ▁listed ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁ 1 9 8 5 . ▁ ▁The ▁Diam ond ▁C ove ▁General ▁Store , ▁a ▁season al ▁business ▁near ▁the ▁former ▁Qu arter master s ▁Qu arters , ▁offers ▁gro cer ies , ▁c andy ▁and ▁prepared ▁food s ▁from ▁just ▁before ▁Memorial ▁Day ▁until ▁just ▁after ▁Labor ▁Day . ▁Res idents ▁from ▁both ▁sides ▁of ▁the ▁island ▁rely ▁on ▁this ▁fi xture ▁and ▁it ▁is ▁an ▁area ▁where ▁Diam ond ▁C ove ▁residents ▁con greg ate ▁soci ally . ▁In ▁a ▁ 2 0 1 0 ▁G Q ▁magazine ▁article ▁about ▁the ▁cool est ▁small ▁cities ▁in ▁America , ▁visit ing ▁the ▁Diam ond