Yes, the majority of room reservations are refundable provided that you cancel prior to the hotel's cancellation deadline, which in most cases is within 24 or 48 hours of check in. If your reservation is non-refundable, it might still be possible to cancel it and be given a refund within a 24-hour period of your booking. Enter dates in and click on "Search", then use the "fully refundable" filter to view the best deals near Parque San Martín.