Aberdovey and Borth coastguard rescue teams, Aberdovey RNLI lifeboat, the coastguard helicopter from Caernarfon, Welsh Ambulance Service and two air ambulances were all sent.
Three people were taken to hospital by the coastguard helicopter, one by an air ambulance and two by road ambulance.
Two other people were checked over by paramedics on scene and did not need onward transfer to hospital.
Teams have now been stood down.
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