Water Features
get information about an ocean
do computations with ocean properties
get current tide information
get information about an undersea feature
compare several undersea features
get information about a lake
compare several lakes
do computations with lake properties
get information about a river
compare several rivers
do computations with river properties
Bays
get information about a bay
find bays meeting given criteria
Harbors
get information about a harbor
compare harbors
find harbors meeting given criteria
Marine Sounds
get information about a marine sound
compare marine sounds
look up a property for marine sounds
get information about a waterfall
compare several waterfalls
do computations with waterfall properties