 Entering the First Grotto on the return trip, Tam Coc
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 Entering the First Grotto on the return trip, Tam Coc
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 Row boat entering the Second Grotto, Ngo Dong River, Tam Coc
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 Entrance to the Third Grotto, 18m wide, 45m long, Tam Coc
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 Most of the paddlers are women, but some are men, Tam Coc
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