while much of land front fortifications have been destroyed, many areas have been more or less preserved and some sections have been partly restored. in vantaa länsiniemi and rajakylä areas have been cleared from rubbish and vegetation. in espoo laajalahti, mäkkylä, ormberget and ruukinranta areas have also been cleared. in helsinki trees threatening the structure of one of the older 1914 redoubts in rajakallio have been cut, and the city planning department has made a plan regarding the maintenance of the cleared areas and restoring new ones. of the coastal forts, all main line of defence islands except pyöräsaari and harmaja are still in military use and forbidden from civilians, and harmaja is used by the finnish maritime administration as a pilot station. a coastal artillery museum has been built on kuivasaari and the island is no longer in active military use, but still officially restricted area. visitors are allowed but only in organized tours. it is planned to transfer kuivasaari, together with rysäkari, into civilian authorities. skatanniemi cape is the only area of the main line of defence that is easily visited. the central citadel of suomenlinna is a major tourist attraction and unesco world heritage site with regular ferry connection. the islands of vallisaari and kuninkaansaari are also currently being transferred to civilian authorities, with military tentatively scheduled to leave the islands by 2012. pihlajasaaret is a helsinki city recreation area open to public with regular ferry connection during summertime. vasikkasaari and lonna are also civilian areas open to visit, but more difficult to reach.