Booking Croatia ferries in advance is highly recommended for travel in 2026, especially during the peak summer months from June to September. While local, high-capacity car ferries operated by companies like Jadrolinija often allow for tickets to be purchased at the pier, popular high-speed catamarans (Krilo, TP-Line) frequently sell out days or even weeks in advance. For routes such as Split to Hvar or Dubrovnik to Korčula, securing a digital ticket online ensures you have a guaranteed seat on your preferred departure time. During the 2026 season, ferry services expand significantly starting March 1st, but travelers should still monitor official schedules as demand spikes on weekends. Buying ahead not only provides peace of mind but also allows you to skip the long ticket-office queues in the heat of the day, making your island-hopping experience significantly smoother and more predictable.