Each subcamp was named after one of the Frisian Islands : Lager Norderney located at Saye , Lager Borkum at Platte Saline , Lager Sylt near the old telegraph tower at La Foulère and Lager Helgoland , situated in the northwest corner of the island .
Each subcamp was named after one of the Frisian Islands : Lager Norderney at Saye , Lager Borkum at Platte Saline , Lager Sylt near the old telegraph tower at La Foulère and Lager Helgoland , in the northwest corner of the island .