HAVRANKA
Prirodni pamatka Havranka - je to vlastne nejvetsi trojske vresoviste zvane Pusta vinice. Svah je tvoren prevazne vresovým porostem a spolecenstvim teplomilnych rostlin. Souvisle vresoviste je prechodovym clankem mezi nekdejsi hospodarskou kulturou a hajem. To ze zde kdysi po zpustnutí pry nejstarsi vinice vznikla pastvina, melo za nasledek posleze prave vznik vresoviste ( neb kozy a ovce vsechno ostatni v zarodku sezraly, ale vres jim nejede - aspon to mi kdysi, pri psani zivotne prostredni seminarky, tvrdily botanicke kapacity 
Soucasna udrzba spociva prave v odstranovani naletových drevin ( uz zase za pomoci koz a ovci ) a potlacuje prirozeny proces zarustani, ktery by vedl k promene v neprilis vzacny haj.
Z mista se vam otevre pekny vyhled na Prahu a taky na mista ulozeni zhruba tak 6ti blizkych kesek. 
A pokud prijedete na horskem kole, prosim vezmete to dolu cestou a ne skrze vresoviste, jak to bohuzel mnoho bikeru dela.
dodatek pro kocarkare: od severu lze s timto geovozitkem prijet: teren 1,5 hvezdicky, z jihu je to po schodech:teren 2,5 hvezdicky
ENG: Natural sanctuary Havranka - this is the biggest Troja's heathland called Wasted Vineyard. Heathland is situated on the hillside, where once upon a time :) was the oldest local vineyard. After vineyard, place turned into grassland and finally ( with help of sheep and goats, which ate everything except heather) turned into heathland.
From the cache, you can see nice view over the city. And over about 6 other nearby caches. :)
for bikers: please ride the road, not trough the heathland.