While "walking in" to a Nikki Beach location (such as Marbella, Saint Barth, or Dubai) is technically possible in 2026, it is highly discouraged, especially during the peak summer or winter seasons. Nikki Beach operates as a high-end luxury beach club where most sunbeds, "opium beds," and restaurant tables are booked weeks in advance. If you "just turn up" without a reservation, you will likely be restricted to the bar area or turned away at the door by security. In 2026, the brand maintains a strict Door Policy regarding dress code (sophisticated beach chic—no sports attire) and age (usually 18+ or 21+ for the pool area). For special events like the "White Party," a reservation is mandatory. If you are seeking a last-minute spot on a weekday in the low season, you might get lucky, but for the full experience, using their online booking portal is essential to ensure you aren't left standing at the gate while the party continues inside.