Answer: regattas

AnswerCrossword Clue
REGATTAS

Henley and Dad Vail.

REGATTAS

Races off Long Island

REGATTAS

Henley events

REGATTAS
Thames races
REGATTAS
Rowing races
REGATTASBoat races
REGATTASHenley races
REGATTASThames river events.
REGATTASBoating events.
REGATTASCompetitions between banks
REGATTASShells may be in them
REGATTASMeets near the shore?
REGATTASSails events?
REGATTASYacht races
REGATTASNautical races
REGATTASRiver contests
REGATTASShell games?
REGATTASTests of crews' control?