Water sports rentals are widely available at the main organised beaches — kayaks, pedal boats, stand-up paddleboards (SUP), and inflatable rides are common at beaches like Becici, Jaz, Budva's Slovenska Plaza, and Petrovac. Jet ski rides are offered at many of these same spots, typically as timed circuits rather than self-guided rentals.
Velika Plaza near Ulcinj stands out as Montenegro's kitesurfing hub: the beach is roughly 12-13 kilometres of shallow sandy coast, and you will find dedicated kitesurf schools and rental outfits there, particularly good in late summer when the afternoon breeze picks up. Scuba diving centres operate out of several towns including Herceg Novi, Budva, and Bar.
Prices fluctuate by season and vendor — budget roughly EUR 10-20 for a kayak hour, EUR 30-60 for a jet ski ride, and expect kitesurfing lessons to start around EUR 50-80 per session. Always confirm prices before getting on the water, as posted rates and negotiated rates at quieter times of day can differ.