For peak season bookings it is unlikely that you will be granted any refund at all, but you can try to negotiate with your vacation rental host...

For peak season bookings it is unlikely that you will be granted any refund at all, but you can try to negotiate with your vacation rental host to credit the payment, or at least a part of it, towards a future booking. Apart from peak periods, 50% to 80% may be refunded if the cancellation is made 2 to 3 months prior to arrival. In some cases, property owners or agents will offer a refund only if the property is subsequently rented to another party.

Whether you are renting a vacation property from an owner or a property management firm, it is important to obtain a rental agreement in writing that clearly spells out the cancellation policies, and to ensure you fully agree with every point before making a payment.