Tourists heading to places like Greece, Turkey and Thailand are being warned against hiring quad bikes and scooters.
Travel agents say there's been a number of deaths and serious injuries recently.
36 quad bike accidents and seven moped accidents happened 2017, not including a great number which are thought to have gone unreported.
The British travel group ABTA have said:
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"We recommend that travelers who have little experience with mopeds think about renting these vehicles and only riding quads if they are part of a properly supervised off-road tour."
