16th century watchtower
area of transitions ecotone border ecological ecosystems
cliff
cliff coastal cliff
coast
coastal erosion
coastal proximity
coastal surveillance
coastal surveillance system
coastal warning
coastline
compounds by rocks resistant to erosion
defense
emits light beams
escarpment
for navigation
fortification
geographic
global defense
guide
history majorca
in use until the nineteenth century
joan binimelis
light signage
lighthouse
maritime signals
navigation systems
pirate raid
protection
reference
sedimentary rocks
signal tower
slope
steep slope
strategic locations coast stretch of coastline
the mediterranean sea
tower system watchtowers
types of coast mediterranean coast
vertical
watchtowers