Holiday letting insurance is specialist cover that protects you from the risks that come with renting out your holiday home to paying guests, as well as friends and family on a short-term basis. As well as buildings and contents, policies typically cover public liability, accidental damage, loss of rent as well as periods when the property is unoccupied.
A standard home insurance policy is not sufficient to cover your holiday let as it will not cover commercially letting your home - which will probably invalidate the policy.