英文關鍵字
algae
alongshore
bluff
boat
boating
cave
cavern
clayish
cliff
cliffside
coast
coastal
coastline
crag
excursion
formation
geological
geology
grotto
heaving
inside
jaggy
jutting
limestone
minerals
navigate
navigating
navigation
outcropping
outcrops
pleasure
ridge
rippling
rock
rocky
sail
sailing
sea
sedimentary
shore
steer
submerged
tour
trip
visit
visiting
water
waves
waving
weathered
weathering