continu ing ▁by ▁the ▁" pl ages ▁des ▁dem ois elles ▁" ▁in ▁Saint ▁Jean ▁de ▁Mont s ). ▁The ▁foot path ▁d unes ▁between ▁sea ▁and ▁is ▁ 9   km ▁to ▁St ▁Jean ▁de ▁Mont s . ▁ ▁The ▁main ▁beach ▁is ▁l ined ▁with ▁white ▁d unes ▁made ▁of ▁fine ▁sand , ▁which ▁quickly ▁leaves ▁the ▁room ▁for ▁a ▁gray ▁d une ▁fl atter ▁and ▁covered ▁with ▁varied ▁plants ▁( imm ort al , ▁E ph ed ra ▁dist ach ya , ▁burn et ▁rose , ▁sed um , ▁etc .). ▁ ▁Be hind ▁the ▁d unes , ▁S ion ▁forest ▁extends ▁over ▁ 5 0 0 ▁hect ares ▁of ▁forest ▁land sc aped ▁with ▁numerous ▁h ik ing ▁tra ils . ▁The ▁forest ▁was ▁once ▁d otted ▁with ▁cam ps ites ▁and ▁especially ▁summer ▁cam ps . ▁These ▁colon ies ▁were ▁for ▁most ▁establishment ▁managed ▁by ▁the ▁" red ▁municipal ities " ▁( comm un ists ) ▁in ▁the ▁Paris ▁sub ur bs . ▁There ▁are ▁now ▁ 3 ▁or ▁ 4 ▁in ▁activity , ▁some ▁" rem n ants " ▁of ▁the ▁old ▁facilities ▁are ▁still ▁visible ▁in ▁the ▁forest . ▁A ▁monument ▁to ▁the ▁rail ▁worker ▁died ▁for ▁France ▁during ▁the ▁ 3 9 - 4 5 ▁war ▁was ▁ere cted ▁on ▁top ▁of ▁a ▁d une . ▁This ▁forest ▁of ▁cy press es , ▁p ines ▁and ▁o aks ▁covers ▁many ▁d unes ▁giving ▁it ▁an ▁und ulating ▁appearance . ▁It ▁has ▁und ulating ▁layout ▁of