underwater
asia
attractions
blue sky
boso
boso peninsula
chiba
chiba prefecture
clear skies
coast
in katsuura under sea park and underwater observatory
japan
kanto
kanto district
katsuura
katsuura city
katsuura under sea in observation tower
katsuura under sea park
katsuura underwater observation tower
marine park
observation tower
outside the chamber
pacific
scenic spots
sea
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sunny
tour
tourism
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underwater observation tower