Yes, you can use your Smart Destinations pass immediately after purchase. Once you have completed your transaction and received your digital pass, it becomes active and can be utilized right away for admission to various attractions and activities included in the pass. This means you do not have to wait for a physical card to be mailed to you. Simply present your mobile pass or print it out, as instructed, at the participating venues to gain entry. However, it is always a good idea to check the specific terms and conditions associated with your pass, as each destination may have unique rules or opening times. For the most accurate and up-to-date information, it is recommended to refer to the website.