Answer: estuaries

AnswerCrossword Clue
ESTUARIESRiver ends
ESTUARIESCoastal waters
ESTUARIESBig arms
ESTUARIESArms of the sea.
ESTUARIESFirths.
ESTUARIESWhere the tides meet the currents
ESTUARIESRiver mouths
ESTUARIESWhere seas and rivers meet
ESTUARIESRiver-sea junctions
estuariesESTUARY, the tidal mouth of a large river
estuariesThe tidal mouth of a large river, where the tide meets the stream