What is the name of the national holiday celebrated by Tropical Smoothie Cafe?

The correct answer is National Flip-Flop Day. This holiday is specifically celebrated by Tropical Smoothie Cafe and takes place annually on the third Friday in June. It is a unique event for the cafe, often associated with promoting their brand and products while encouraging customers to celebrate the summer season. The cafe typically uses this occasion to offer special promotions or to engage with customers through various activities, reinforcing its connection to summer vibes and casual, relaxed dining experiences.

The other options, while they may pertain to smoothies or related themes, do not represent the specific holiday that Tropical Smoothie Cafe is known for celebrating. National Smoothie Day exists but is not a signature event for the cafe. Similarly, National Smoothie Month is a broader recognition and not limited to the cafe's specific holiday promotions. National Tropical Day does not have any established connection with the cafe, making it an unrelated choice in context.