There is no single national booking platform for Montenegrin beach bars, but many individual bars do accept reservations — particularly for baldahins and premium sunbed sets during July and August. The usual channels are phone call, WhatsApp message, or an Instagram DM to the bar’s account.
For standard sunbeds on public beaches (Slovenska Plaza, Sutomore, Becici), most spots are walk-up only — you simply arrive, choose an empty set, and pay the attendant. Premium beach clubs and resort-adjacent bars near Sveti Stefan or Przno are more likely to operate a reservation system and may require a deposit.
If you are planning a group visit or specifically want a baldahin on a busy weekend, contact the bar a few days in advance. Look for the bar’s Instagram page or Google Maps listing to find a contact number.