Boat and pleasure craft users are being urged to ensure they always carry flares or a marine radio when they go to sea.
It follows the rescue of two jet skiers by the Port Erin lifeboat, after the jet ski engines failed in the bay yesterday.
It's thought the pair were not carrying any communications gear.
Spokesman for the Port Erin RNLI Graham Sharples says even in good conditions the unexpected can happen:
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